Home / 77,381,501.68-106,787,319.87-42,099,507.34

Finding the Fourth Proportional to 77,381,501.68, 106,787,319.87 and 42,099,507.34

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Solution

The fourth proportional to 77,381,501.68, 106,787,319.87 and 42,099,507.34 is: 58,097,781.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,381,501.68 : 106,787,319.87 = 42,099,507.34 : x
  2. Step 2: Convert to fraction form
    77,381,501.68/106,787,319.87 = 42,099,507.34/x
  3. Step 3: Cross multiply
    77,381,501.68x = 106,787,319.87 × 42,099,507.34
  4. Step 4: Simplify right side
    77,381,501.68x = 4,495,693,556,576,897.50
  5. Step 5: Solve for x
    x = 4,495,693,556,576,897.50/77,381,501.68
  6. Step 6: Final answer
    x = 58,097,781.24

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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.