Home / 1,321,865,585.96-1,982,377,711.54-436,386,074.94

Finding the Fourth Proportional to 1,321,865,585.96, 1,982,377,711.54 and 436,386,074.94

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Solution

The fourth proportional to 1,321,865,585.96, 1,982,377,711.54 and 436,386,074.94 is: 654,440,237.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,865,585.96 : 1,982,377,711.54 = 436,386,074.94 : x
  2. Step 2: Convert to fraction form
    1,321,865,585.96/1,982,377,711.54 = 436,386,074.94/x
  3. Step 3: Cross multiply
    1,321,865,585.96x = 1,982,377,711.54 × 436,386,074.94
  4. Step 4: Simplify right side
    1,321,865,585.96x = 865,082,028,587,480,064
  5. Step 5: Solve for x
    x = 865,082,028,587,480,064/1,321,865,585.96
  6. Step 6: Final answer
    x = 654,440,237.93

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Double scale
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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.