Home / 428,489,025.60-642,733,538.40-224,079,758.40

Finding the Fourth Proportional to 428,489,025.60, 642,733,538.40 and 224,079,758.40

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Solution

The fourth proportional to 428,489,025.60, 642,733,538.40 and 224,079,758.40 is: 336,119,637.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,489,025.60 : 642,733,538.40 = 224,079,758.40 : x
  2. Step 2: Convert to fraction form
    428,489,025.60/642,733,538.40 = 224,079,758.40/x
  3. Step 3: Cross multiply
    428,489,025.60x = 642,733,538.40 × 224,079,758.40
  4. Step 4: Simplify right side
    428,489,025.60x = 144,023,576,000,249,120
  5. Step 5: Solve for x
    x = 144,023,576,000,249,120/428,489,025.60
  6. Step 6: Final answer
    x = 336,119,637.60

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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.