Home / 100,151,390.24-138,139,894.32-70,445,040.92

Finding the Fourth Proportional to 100,151,390.24, 138,139,894.32 and 70,445,040.92

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Solution

The fourth proportional to 100,151,390.24, 138,139,894.32 and 70,445,040.92 is: 97,165,605.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,151,390.24 : 138,139,894.32 = 70,445,040.92 : x
  2. Step 2: Convert to fraction form
    100,151,390.24/138,139,894.32 = 70,445,040.92/x
  3. Step 3: Cross multiply
    100,151,390.24x = 138,139,894.32 × 70,445,040.92
  4. Step 4: Simplify right side
    100,151,390.24x = 9,731,270,508,056,876
  5. Step 5: Solve for x
    x = 9,731,270,508,056,876/100,151,390.24
  6. Step 6: Final answer
    x = 97,165,605.84

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1.5x scale

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.