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Finding the Fourth Proportional to 418,732,507.02, 628,166,933.64 and 123,657,473.64

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Solution

The fourth proportional to 418,732,507.02, 628,166,933.64 and 123,657,473.64 is: 185,506,342.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,732,507.02 : 628,166,933.64 = 123,657,473.64 : x
  2. Step 2: Convert to fraction form
    418,732,507.02/628,166,933.64 = 123,657,473.64/x
  3. Step 3: Cross multiply
    418,732,507.02x = 628,166,933.64 × 123,657,473.64
  4. Step 4: Simplify right side
    418,732,507.02x = 77,677,536,038,107,920
  5. Step 5: Solve for x
    x = 77,677,536,038,107,920/418,732,507.02
  6. Step 6: Final answer
    x = 185,506,342.92

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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.