Home / 28,369,312.80-42,553,969.20-16,890,187.20

Finding the Fourth Proportional to 28,369,312.80, 42,553,969.20 and 16,890,187.20

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Solution

The fourth proportional to 28,369,312.80, 42,553,969.20 and 16,890,187.20 is: 25,335,280.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,369,312.80 : 42,553,969.20 = 16,890,187.20 : x
  2. Step 2: Convert to fraction form
    28,369,312.80/42,553,969.20 = 16,890,187.20/x
  3. Step 3: Cross multiply
    28,369,312.80x = 42,553,969.20 × 16,890,187.20
  4. Step 4: Simplify right side
    28,369,312.80x = 718,744,505,891,034.25
  5. Step 5: Solve for x
    x = 718,744,505,891,034.25/28,369,312.80
  6. Step 6: Final answer
    x = 25,335,280.80

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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.