Home / 1,021,584,934.51-1,409,787,201.31-551,686,213.95

Finding the Fourth Proportional to 1,021,584,934.51, 1,409,787,201.31 and 551,686,213.95

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Solution

The fourth proportional to 1,021,584,934.51, 1,409,787,201.31 and 551,686,213.95 is: 761,326,970.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,584,934.51 : 1,409,787,201.31 = 551,686,213.95 : x
  2. Step 2: Convert to fraction form
    1,021,584,934.51/1,409,787,201.31 = 551,686,213.95/x
  3. Step 3: Cross multiply
    1,021,584,934.51x = 1,409,787,201.31 × 551,686,213.95
  4. Step 4: Simplify right side
    1,021,584,934.51x = 777,760,163,570,226,944
  5. Step 5: Solve for x
    x = 777,760,163,570,226,944/1,021,584,934.51
  6. Step 6: Final answer
    x = 761,326,970.77

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Half scale
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Double scale
Find fourth proportional to 1,021,584,935.51, 1,409,787,202.69 and 551,686,214.95
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.