Home / 28,356,220.80-42,534,331.20-13,986,172.80

Finding the Fourth Proportional to 28,356,220.80, 42,534,331.20 and 13,986,172.80

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Solution

The fourth proportional to 28,356,220.80, 42,534,331.20 and 13,986,172.80 is: 20,979,259.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,356,220.80 : 42,534,331.20 = 13,986,172.80 : x
  2. Step 2: Convert to fraction form
    28,356,220.80/42,534,331.20 = 13,986,172.80/x
  3. Step 3: Cross multiply
    28,356,220.80x = 42,534,331.20 × 13,986,172.80
  4. Step 4: Simplify right side
    28,356,220.80x = 594,892,506,095,631.38
  5. Step 5: Solve for x
    x = 594,892,506,095,631.38/28,356,220.80
  6. Step 6: Final answer
    x = 20,979,259.20

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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.