Home / 51,418,588.02-77,126,988.69-20,712,382.43

Finding the Fourth Proportional to 51,418,588.02, 77,126,988.69 and 20,712,382.43

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Solution

The fourth proportional to 51,418,588.02, 77,126,988.69 and 20,712,382.43 is: 31,068,213.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,418,588.02 : 77,126,988.69 = 20,712,382.43 : x
  2. Step 2: Convert to fraction form
    51,418,588.02/77,126,988.69 = 20,712,382.43/x
  3. Step 3: Cross multiply
    51,418,588.02x = 77,126,988.69 × 20,712,382.43
  4. Step 4: Simplify right side
    51,418,588.02x = 1,597,483,685,035,929.75
  5. Step 5: Solve for x
    x = 1,597,483,685,035,929.75/51,418,588.02
  6. Step 6: Final answer
    x = 31,068,213.78

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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.