Home / 139,150,182.78-208,690,783.56-47,031,874.92

Finding the Fourth Proportional to 139,150,182.78, 208,690,783.56 and 47,031,874.92

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Solution

The fourth proportional to 139,150,182.78, 208,690,783.56 and 47,031,874.92 is: 70,536,154.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,150,182.78 : 208,690,783.56 = 47,031,874.92 : x
  2. Step 2: Convert to fraction form
    139,150,182.78/208,690,783.56 = 47,031,874.92/x
  3. Step 3: Cross multiply
    139,150,182.78x = 208,690,783.56 × 47,031,874.92
  4. Step 4: Simplify right side
    139,150,182.78x = 9,815,118,829,350,712
  5. Step 5: Solve for x
    x = 9,815,118,829,350,712/139,150,182.78
  6. Step 6: Final answer
    x = 70,536,154.77

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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.