Home / 157,169,278.40-235,753,917.60-80,641,774.40

Finding the Fourth Proportional to 157,169,278.40, 235,753,917.60 and 80,641,774.40

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Solution

The fourth proportional to 157,169,278.40, 235,753,917.60 and 80,641,774.40 is: 120,962,661.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,169,278.40 : 235,753,917.60 = 80,641,774.40 : x
  2. Step 2: Convert to fraction form
    157,169,278.40/235,753,917.60 = 80,641,774.40/x
  3. Step 3: Cross multiply
    157,169,278.40x = 235,753,917.60 × 80,641,774.40
  4. Step 4: Simplify right side
    157,169,278.40x = 19,011,614,237,015,392
  5. Step 5: Solve for x
    x = 19,011,614,237,015,392/157,169,278.40
  6. Step 6: Final answer
    x = 120,962,661.60

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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.