Home / 80,911,727.20-121,409,581.20-35,478,114.40

Finding the Fourth Proportional to 80,911,727.20, 121,409,581.20 and 35,478,114.40

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Solution

The fourth proportional to 80,911,727.20, 121,409,581.20 and 35,478,114.40 is: 53,235,583.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,911,727.20 : 121,409,581.20 = 35,478,114.40 : x
  2. Step 2: Convert to fraction form
    80,911,727.20/121,409,581.20 = 35,478,114.40/x
  3. Step 3: Cross multiply
    80,911,727.20x = 121,409,581.20 × 35,478,114.40
  4. Step 4: Simplify right side
    80,911,727.20x = 4,307,383,011,069,689
  5. Step 5: Solve for x
    x = 4,307,383,011,069,689/80,911,727.20
  6. Step 6: Final answer
    x = 53,235,583.52

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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.