Home / 515,609,358.28-773,406,459.30-127,432,222.12

Finding the Fourth Proportional to 515,609,358.28, 773,406,459.30 and 127,432,222.12

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Solution

The fourth proportional to 515,609,358.28, 773,406,459.30 and 127,432,222.12 is: 191,146,460.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,609,358.28 : 773,406,459.30 = 127,432,222.12 : x
  2. Step 2: Convert to fraction form
    515,609,358.28/773,406,459.30 = 127,432,222.12/x
  3. Step 3: Cross multiply
    515,609,358.28x = 773,406,459.30 × 127,432,222.12
  4. Step 4: Simplify right side
    515,609,358.28x = 98,556,903,710,560,336
  5. Step 5: Solve for x
    x = 98,556,903,710,560,336/515,609,358.28
  6. Step 6: Final answer
    x = 191,146,460.26

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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.