Home / 740,392,778.52-1,021,727,425.68-405,866,021.76

Finding the Fourth Proportional to 740,392,778.52, 1,021,727,425.68 and 405,866,021.76

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Solution

The fourth proportional to 740,392,778.52, 1,021,727,425.68 and 405,866,021.76 is: 560,087,101.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,392,778.52 : 1,021,727,425.68 = 405,866,021.76 : x
  2. Step 2: Convert to fraction form
    740,392,778.52/1,021,727,425.68 = 405,866,021.76/x
  3. Step 3: Cross multiply
    740,392,778.52x = 1,021,727,425.68 × 405,866,021.76
  4. Step 4: Simplify right side
    740,392,778.52x = 414,684,445,583,827,648
  5. Step 5: Solve for x
    x = 414,684,445,583,827,648/740,392,778.52
  6. Step 6: Final answer
    x = 560,087,101.89

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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.