Home / 410,111,217.20-615,168,421.78-99,218,334.31

Finding the Fourth Proportional to 410,111,217.20, 615,168,421.78 and 99,218,334.31

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Solution

The fourth proportional to 410,111,217.20, 615,168,421.78 and 99,218,334.31 is: 148,827,887.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,111,217.20 : 615,168,421.78 = 99,218,334.31 : x
  2. Step 2: Convert to fraction form
    410,111,217.20/615,168,421.78 = 99,218,334.31/x
  3. Step 3: Cross multiply
    410,111,217.20x = 615,168,421.78 × 99,218,334.31
  4. Step 4: Simplify right side
    410,111,217.20x = 61,035,986,129,123,120
  5. Step 5: Solve for x
    x = 61,035,986,129,123,120/410,111,217.20
  6. Step 6: Final answer
    x = 148,827,887.58

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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.