Home / 20,912,300.80-31,368,451.20-16,607,628.70

Finding the Fourth Proportional to 20,912,300.80, 31,368,451.20 and 16,607,628.70

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Solution

The fourth proportional to 20,912,300.80, 31,368,451.20 and 16,607,628.70 is: 24,911,443.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,912,300.80 : 31,368,451.20 = 16,607,628.70 : x
  2. Step 2: Convert to fraction form
    20,912,300.80/31,368,451.20 = 16,607,628.70/x
  3. Step 3: Cross multiply
    20,912,300.80x = 31,368,451.20 × 16,607,628.70
  4. Step 4: Simplify right side
    20,912,300.80x = 520,955,590,423,669.38
  5. Step 5: Solve for x
    x = 520,955,590,423,669.38/20,912,300.80
  6. Step 6: Final answer
    x = 24,911,443.05

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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.