Home / 147,508,981.60-203,573,655.12-81,442,199.20

Finding the Fourth Proportional to 147,508,981.60, 203,573,655.12 and 81,442,199.20

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Solution

The fourth proportional to 147,508,981.60, 203,573,655.12 and 81,442,199.20 is: 112,396,452.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,508,981.60 : 203,573,655.12 = 81,442,199.20 : x
  2. Step 2: Convert to fraction form
    147,508,981.60/203,573,655.12 = 81,442,199.20/x
  3. Step 3: Cross multiply
    147,508,981.60x = 203,573,655.12 × 81,442,199.20
  4. Step 4: Simplify right side
    147,508,981.60x = 16,579,486,172,155,140
  5. Step 5: Solve for x
    x = 16,579,486,172,155,140/147,508,981.60
  6. Step 6: Final answer
    x = 112,396,452.01

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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.