Home / 1,409,761,881.51-1,945,357,339.40-815,084,520.09

Finding the Fourth Proportional to 1,409,761,881.51, 1,945,357,339.40 and 815,084,520.09

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Solution

The fourth proportional to 1,409,761,881.51, 1,945,357,339.40 and 815,084,520.09 is: 1,124,750,693.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,409,761,881.51 : 1,945,357,339.40 = 815,084,520.09 : x
  2. Step 2: Convert to fraction form
    1,409,761,881.51/1,945,357,339.40 = 815,084,520.09/x
  3. Step 3: Cross multiply
    1,409,761,881.51x = 1,945,357,339.40 × 815,084,520.09
  4. Step 4: Simplify right side
    1,409,761,881.51x = 1,585,630,653,384,332,800
  5. Step 5: Solve for x
    x = 1,585,630,653,384,332,800/1,409,761,881.51
  6. Step 6: Final answer
    x = 1,124,750,693.14

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Double scale
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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.