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Finding the Fourth Proportional to 120,806,404.80, 181,272,592.80 and 52,655,985.60

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Solution

The fourth proportional to 120,806,404.80, 181,272,592.80 and 52,655,985.60 is: 79,011,431.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,806,404.80 : 181,272,592.80 = 52,655,985.60 : x
  2. Step 2: Convert to fraction form
    120,806,404.80/181,272,592.80 = 52,655,985.60/x
  3. Step 3: Cross multiply
    120,806,404.80x = 181,272,592.80 × 52,655,985.60
  4. Step 4: Simplify right side
    120,806,404.80x = 9,545,087,036,151,464
  5. Step 5: Solve for x
    x = 9,545,087,036,151,464/120,806,404.80
  6. Step 6: Final answer
    x = 79,011,431.98

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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.