Home / 31,042,630.65-42,838,870.57-16,913,750.21

Finding the Fourth Proportional to 31,042,630.65, 42,838,870.57 and 16,913,750.21

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Solution

The fourth proportional to 31,042,630.65, 42,838,870.57 and 16,913,750.21 is: 23,340,997.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,042,630.65 : 42,838,870.57 = 16,913,750.21 : x
  2. Step 2: Convert to fraction form
    31,042,630.65/42,838,870.57 = 16,913,750.21/x
  3. Step 3: Cross multiply
    31,042,630.65x = 42,838,870.57 × 16,913,750.21
  4. Step 4: Simplify right side
    31,042,630.65x = 724,565,955,930,799.75
  5. Step 5: Solve for x
    x = 724,565,955,930,799.75/31,042,630.65
  6. Step 6: Final answer
    x = 23,340,997.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.