Home / 288,717,711.20-433,102,025.64-81,457,935.20

Finding the Fourth Proportional to 288,717,711.20, 433,102,025.64 and 81,457,935.20

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Solution

The fourth proportional to 288,717,711.20, 433,102,025.64 and 81,457,935.20 is: 122,194,085.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,717,711.20 : 433,102,025.64 = 81,457,935.20 : x
  2. Step 2: Convert to fraction form
    288,717,711.20/433,102,025.64 = 81,457,935.20/x
  3. Step 3: Cross multiply
    288,717,711.20x = 433,102,025.64 × 81,457,935.20
  4. Step 4: Simplify right side
    288,717,711.20x = 35,279,596,739,571,860
  5. Step 5: Solve for x
    x = 35,279,596,739,571,860/288,717,711.20
  6. Step 6: Final answer
    x = 122,194,085.68

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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.