Home / 42,011,386.98-63,019,050.42-20,420,251.62

Finding the Fourth Proportional to 42,011,386.98, 63,019,050.42 and 20,420,251.62

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Solution

The fourth proportional to 42,011,386.98, 63,019,050.42 and 20,420,251.62 is: 30,631,334.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,011,386.98 : 63,019,050.42 = 20,420,251.62 : x
  2. Step 2: Convert to fraction form
    42,011,386.98/63,019,050.42 = 20,420,251.62/x
  3. Step 3: Cross multiply
    42,011,386.98x = 63,019,050.42 × 20,420,251.62
  4. Step 4: Simplify right side
    42,011,386.98x = 1,286,864,866,429,866.75
  5. Step 5: Solve for x
    x = 1,286,864,866,429,866.75/42,011,386.98
  6. Step 6: Final answer
    x = 30,631,334.95

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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.