Home / 1,278,553,338.30-1,917,830,007.45-460,692,320.70

Finding the Fourth Proportional to 1,278,553,338.30, 1,917,830,007.45 and 460,692,320.70

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Solution

The fourth proportional to 1,278,553,338.30, 1,917,830,007.45 and 460,692,320.70 is: 691,038,481.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,553,338.30 : 1,917,830,007.45 = 460,692,320.70 : x
  2. Step 2: Convert to fraction form
    1,278,553,338.30/1,917,830,007.45 = 460,692,320.70/x
  3. Step 3: Cross multiply
    1,278,553,338.30x = 1,917,830,007.45 × 460,692,320.70
  4. Step 4: Simplify right side
    1,278,553,338.30x = 883,529,556,840,238,848
  5. Step 5: Solve for x
    x = 883,529,556,840,238,848/1,278,553,338.30
  6. Step 6: Final answer
    x = 691,038,481.05

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.