Home / 42,579,320.80-63,868,981.20-29,142,392.80

Finding the Fourth Proportional to 42,579,320.80, 63,868,981.20 and 29,142,392.80

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Solution

The fourth proportional to 42,579,320.80, 63,868,981.20 and 29,142,392.80 is: 43,713,589.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,579,320.80 : 63,868,981.20 = 29,142,392.80 : x
  2. Step 2: Convert to fraction form
    42,579,320.80/63,868,981.20 = 29,142,392.80/x
  3. Step 3: Cross multiply
    42,579,320.80x = 63,868,981.20 × 29,142,392.80
  4. Step 4: Simplify right side
    42,579,320.80x = 1,861,294,937,866,215.50
  5. Step 5: Solve for x
    x = 1,861,294,937,866,215.50/42,579,320.80
  6. Step 6: Final answer
    x = 43,713,589.20

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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.