Home / 982,872,787.75-1,474,516,239.53-318,834,957.65

Finding the Fourth Proportional to 982,872,787.75, 1,474,516,239.53 and 318,834,957.65

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Solution

The fourth proportional to 982,872,787.75, 1,474,516,239.53 and 318,834,957.65 is: 478,319,604.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    982,872,787.75 : 1,474,516,239.53 = 318,834,957.65 : x
  2. Step 2: Convert to fraction form
    982,872,787.75/1,474,516,239.53 = 318,834,957.65/x
  3. Step 3: Cross multiply
    982,872,787.75x = 1,474,516,239.53 × 318,834,957.65
  4. Step 4: Simplify right side
    982,872,787.75x = 470,127,322,784,784,768
  5. Step 5: Solve for x
    x = 470,127,322,784,784,768/982,872,787.75
  6. Step 6: Final answer
    x = 478,319,604.17

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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.