Home / 21,569,532.72-29,766,689.64-12,756,538.68

Finding the Fourth Proportional to 21,569,532.72, 29,766,689.64 and 12,756,538.68

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Solution

The fourth proportional to 21,569,532.72, 29,766,689.64 and 12,756,538.68 is: 17,604,457.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,569,532.72 : 29,766,689.64 = 12,756,538.68 : x
  2. Step 2: Convert to fraction form
    21,569,532.72/29,766,689.64 = 12,756,538.68/x
  3. Step 3: Cross multiply
    21,569,532.72x = 29,766,689.64 × 12,756,538.68
  4. Step 4: Simplify right side
    21,569,532.72x = 379,719,927,768,215.25
  5. Step 5: Solve for x
    x = 379,719,927,768,215.25/21,569,532.72
  6. Step 6: Final answer
    x = 17,604,457.76

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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.