Home / 128,897,470,217.57-177,887,910,304.11-74,718,006,232.56

Finding the Fourth Proportional to 128,897,470,217.57, 177,887,910,304.11 and 74,718,006,232.56

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Solution

The fourth proportional to 128,897,470,217.57, 177,887,910,304.11 and 74,718,006,232.56 is: 103,116,298,313.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,897,470,217.57 : 177,887,910,304.11 = 74,718,006,232.56 : x
  2. Step 2: Convert to fraction form
    128,897,470,217.57/177,887,910,304.11 = 74,718,006,232.56/x
  3. Step 3: Cross multiply
    128,897,470,217.57x = 177,887,910,304.11 × 74,718,006,232.56
  4. Step 4: Simplify right side
    128,897,470,217.57x = 13,291,429,990,798,672,789,504
  5. Step 5: Solve for x
    x = 13,291,429,990,798,672,789,504/128,897,470,217.57
  6. Step 6: Final answer
    x = 103,116,298,313.41

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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.