Home / 48,387,777.80-72,581,666.70-12,485,985.80

Finding the Fourth Proportional to 48,387,777.80, 72,581,666.70 and 12,485,985.80

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Solution

The fourth proportional to 48,387,777.80, 72,581,666.70 and 12,485,985.80 is: 18,728,978.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,387,777.80 : 72,581,666.70 = 12,485,985.80 : x
  2. Step 2: Convert to fraction form
    48,387,777.80/72,581,666.70 = 12,485,985.80/x
  3. Step 3: Cross multiply
    48,387,777.80x = 72,581,666.70 × 12,485,985.80
  4. Step 4: Simplify right side
    48,387,777.80x = 906,253,659,756,533
  5. Step 5: Solve for x
    x = 906,253,659,756,533/48,387,777.80
  6. Step 6: Final answer
    x = 18,728,978.70

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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.