Home / 21,569,535.72-29,766,693.78-12,756,541.68

Finding the Fourth Proportional to 21,569,535.72, 29,766,693.78 and 12,756,541.68

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Solution

The fourth proportional to 21,569,535.72, 29,766,693.78 and 12,756,541.68 is: 17,604,461.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,569,535.72 : 29,766,693.78 = 12,756,541.68 : x
  2. Step 2: Convert to fraction form
    21,569,535.72/29,766,693.78 = 12,756,541.68/x
  3. Step 3: Cross multiply
    21,569,535.72x = 29,766,693.78 × 12,756,541.68
  4. Step 4: Simplify right side
    21,569,535.72x = 379,720,069,880,366.75
  5. Step 5: Solve for x
    x = 379,720,069,880,366.75/21,569,535.72
  6. Step 6: Final answer
    x = 17,604,461.90

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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.