Home / 120,348,977.34-180,514,635.85-38,445,864.40

Finding the Fourth Proportional to 120,348,977.34, 180,514,635.85 and 38,445,864.40

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Solution

The fourth proportional to 120,348,977.34, 180,514,635.85 and 38,445,864.40 is: 57,665,975.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,348,977.34 : 180,514,635.85 = 38,445,864.40 : x
  2. Step 2: Convert to fraction form
    120,348,977.34/180,514,635.85 = 38,445,864.40/x
  3. Step 3: Cross multiply
    120,348,977.34x = 180,514,635.85 × 38,445,864.40
  4. Step 4: Simplify right side
    120,348,977.34x = 6,940,041,212,378,179
  5. Step 5: Solve for x
    x = 6,940,041,212,378,179/120,348,977.34
  6. Step 6: Final answer
    x = 57,665,975.78

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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.