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Finding the Fourth Proportional to 64,447,918.20, 96,671,877.30 and 38,967,521.40

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Solution

The fourth proportional to 64,447,918.20, 96,671,877.30 and 38,967,521.40 is: 58,451,282.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,447,918.20 : 96,671,877.30 = 38,967,521.40 : x
  2. Step 2: Convert to fraction form
    64,447,918.20/96,671,877.30 = 38,967,521.40/x
  3. Step 3: Cross multiply
    64,447,918.20x = 96,671,877.30 × 38,967,521.40
  4. Step 4: Simplify right side
    64,447,918.20x = 3,767,063,447,465,924
  5. Step 5: Solve for x
    x = 3,767,063,447,465,924/64,447,918.20
  6. Step 6: Final answer
    x = 58,451,282.10

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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.