Home / 512,592,753.57-707,341,276.53-300,908,179.36

Finding the Fourth Proportional to 512,592,753.57, 707,341,276.53 and 300,908,179.36

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Solution

The fourth proportional to 512,592,753.57, 707,341,276.53 and 300,908,179.36 is: 415,231,729.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,592,753.57 : 707,341,276.53 = 300,908,179.36 : x
  2. Step 2: Convert to fraction form
    512,592,753.57/707,341,276.53 = 300,908,179.36/x
  3. Step 3: Cross multiply
    512,592,753.57x = 707,341,276.53 × 300,908,179.36
  4. Step 4: Simplify right side
    512,592,753.57x = 212,844,775,706,820,608
  5. Step 5: Solve for x
    x = 212,844,775,706,820,608/512,592,753.57
  6. Step 6: Final answer
    x = 415,231,729.72

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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.