Home / 80,842,657.20-121,265,022.60-26,989,969.20

Finding the Fourth Proportional to 80,842,657.20, 121,265,022.60 and 26,989,969.20

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Solution

The fourth proportional to 80,842,657.20, 121,265,022.60 and 26,989,969.20 is: 40,485,299.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,842,657.20 : 121,265,022.60 = 26,989,969.20 : x
  2. Step 2: Convert to fraction form
    80,842,657.20/121,265,022.60 = 26,989,969.20/x
  3. Step 3: Cross multiply
    80,842,657.20x = 121,265,022.60 × 26,989,969.20
  4. Step 4: Simplify right side
    80,842,657.20x = 3,272,939,225,011,303.50
  5. Step 5: Solve for x
    x = 3,272,939,225,011,303.50/80,842,657.20
  6. Step 6: Final answer
    x = 40,485,299.94

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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.