Home / 138,077,867,171.43-207,126,154,122.40-48,529,973,640.87

Finding the Fourth Proportional to 138,077,867,171.43, 207,126,154,122.40 and 48,529,973,640.87

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Solution

The fourth proportional to 138,077,867,171.43, 207,126,154,122.40 and 48,529,973,640.87 is: 72,798,247,871.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,077,867,171.43 : 207,126,154,122.40 = 48,529,973,640.87 : x
  2. Step 2: Convert to fraction form
    138,077,867,171.43/207,126,154,122.40 = 48,529,973,640.87/x
  3. Step 3: Cross multiply
    138,077,867,171.43x = 207,126,154,122.40 × 48,529,973,640.87
  4. Step 4: Simplify right side
    138,077,867,171.43x = 10,051,826,799,894,849,388,544
  5. Step 5: Solve for x
    x = 10,051,826,799,894,849,388,544/138,077,867,171.43
  6. Step 6: Final answer
    x = 72,798,247,871.36

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1.5x scale

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.