Home / 90,298,843.18-124,610,284.20-53,131,530.76

Finding the Fourth Proportional to 90,298,843.18, 124,610,284.20 and 53,131,530.76

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Solution

The fourth proportional to 90,298,843.18, 124,610,284.20 and 53,131,530.76 is: 73,320,265.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,298,843.18 : 124,610,284.20 = 53,131,530.76 : x
  2. Step 2: Convert to fraction form
    90,298,843.18/124,610,284.20 = 53,131,530.76/x
  3. Step 3: Cross multiply
    90,298,843.18x = 124,610,284.20 × 53,131,530.76
  4. Step 4: Simplify right side
    90,298,843.18x = 6,620,735,147,984,642
  5. Step 5: Solve for x
    x = 6,620,735,147,984,642/90,298,843.18
  6. Step 6: Final answer
    x = 73,320,265.41

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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.