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Finding the Fourth Proportional to 618,484,903.48, 925,708,627.86 and 454,679,264.44

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Solution

The fourth proportional to 618,484,903.48, 925,708,627.86 and 454,679,264.44 is: 680,534,828.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,484,903.48 : 925,708,627.86 = 454,679,264.44 : x
  2. Step 2: Convert to fraction form
    618,484,903.48/925,708,627.86 = 454,679,264.44/x
  3. Step 3: Cross multiply
    618,484,903.48x = 925,708,627.86 × 454,679,264.44
  4. Step 4: Simplify right side
    618,484,903.48x = 420,900,518,001,146,496
  5. Step 5: Solve for x
    x = 420,900,518,001,146,496/618,484,903.48
  6. Step 6: Final answer
    x = 680,534,828.96

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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.