Home / 138,421,081.12-207,677,077.26-56,608,765.33

Finding the Fourth Proportional to 138,421,081.12, 207,677,077.26 and 56,608,765.33

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Solution

The fourth proportional to 138,421,081.12, 207,677,077.26 and 56,608,765.33 is: 84,931,737.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,421,081.12 : 207,677,077.26 = 56,608,765.33 : x
  2. Step 2: Convert to fraction form
    138,421,081.12/207,677,077.26 = 56,608,765.33/x
  3. Step 3: Cross multiply
    138,421,081.12x = 207,677,077.26 × 56,608,765.33
  4. Step 4: Simplify right side
    138,421,081.12x = 11,756,342,931,031,618
  5. Step 5: Solve for x
    x = 11,756,342,931,031,618/138,421,081.12
  6. Step 6: Final answer
    x = 84,931,737.54

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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.