Home / 28,369,267.80-42,553,901.70-16,890,142.20

Finding the Fourth Proportional to 28,369,267.80, 42,553,901.70 and 16,890,142.20

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Solution

The fourth proportional to 28,369,267.80, 42,553,901.70 and 16,890,142.20 is: 25,335,213.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,369,267.80 : 42,553,901.70 = 16,890,142.20 : x
  2. Step 2: Convert to fraction form
    28,369,267.80/42,553,901.70 = 16,890,142.20/x
  3. Step 3: Cross multiply
    28,369,267.80x = 42,553,901.70 × 16,890,142.20
  4. Step 4: Simplify right side
    28,369,267.80x = 718,741,450,877,821.75
  5. Step 5: Solve for x
    x = 718,741,450,877,821.75/28,369,267.80
  6. Step 6: Final answer
    x = 25,335,213.30

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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.