Home / 709,519,238.40-1,064,278,857.60-514,515,820.80

Finding the Fourth Proportional to 709,519,238.40, 1,064,278,857.60 and 514,515,820.80

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Solution

The fourth proportional to 709,519,238.40, 1,064,278,857.60 and 514,515,820.80 is: 771,773,731.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,519,238.40 : 1,064,278,857.60 = 514,515,820.80 : x
  2. Step 2: Convert to fraction form
    709,519,238.40/1,064,278,857.60 = 514,515,820.80/x
  3. Step 3: Cross multiply
    709,519,238.40x = 1,064,278,857.60 × 514,515,820.80
  4. Step 4: Simplify right side
    709,519,238.40x = 547,588,309,978,150,336
  5. Step 5: Solve for x
    x = 547,588,309,978,150,336/709,519,238.40
  6. Step 6: Final answer
    x = 771,773,731.20

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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.