Home / 54,453,945.60-81,680,918.40-42,124,514.40

Finding the Fourth Proportional to 54,453,945.60, 81,680,918.40 and 42,124,514.40

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Solution

The fourth proportional to 54,453,945.60, 81,680,918.40 and 42,124,514.40 is: 63,186,771.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,453,945.60 : 81,680,918.40 = 42,124,514.40 : x
  2. Step 2: Convert to fraction form
    54,453,945.60/81,680,918.40 = 42,124,514.40/x
  3. Step 3: Cross multiply
    54,453,945.60x = 81,680,918.40 × 42,124,514.40
  4. Step 4: Simplify right side
    54,453,945.60x = 3,440,769,023,346,025
  5. Step 5: Solve for x
    x = 3,440,769,023,346,025/54,453,945.60
  6. Step 6: Final answer
    x = 63,186,771.60

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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.