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Finding the Fourth Proportional to 618,484,893.48, 925,708,612.86 and 454,679,254.44

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Solution

The fourth proportional to 618,484,893.48, 925,708,612.86 and 454,679,254.44 is: 680,534,813.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,484,893.48 : 925,708,612.86 = 454,679,254.44 : x
  2. Step 2: Convert to fraction form
    618,484,893.48/925,708,612.86 = 454,679,254.44/x
  3. Step 3: Cross multiply
    618,484,893.48x = 925,708,612.86 × 454,679,254.44
  4. Step 4: Simplify right side
    618,484,893.48x = 420,900,501,923,871,424
  5. Step 5: Solve for x
    x = 420,900,501,923,871,424/618,484,893.48
  6. Step 6: Final answer
    x = 680,534,813.96

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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.