Home / 426,191,001.60-639,286,502.40-196,608,489.60

Finding the Fourth Proportional to 426,191,001.60, 639,286,502.40 and 196,608,489.60

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Solution

The fourth proportional to 426,191,001.60, 639,286,502.40 and 196,608,489.60 is: 294,912,734.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,191,001.60 : 639,286,502.40 = 196,608,489.60 : x
  2. Step 2: Convert to fraction form
    426,191,001.60/639,286,502.40 = 196,608,489.60/x
  3. Step 3: Cross multiply
    426,191,001.60x = 639,286,502.40 × 196,608,489.60
  4. Step 4: Simplify right side
    426,191,001.60x = 125,689,153,658,530,768
  5. Step 5: Solve for x
    x = 125,689,153,658,530,768/426,191,001.60
  6. Step 6: Final answer
    x = 294,912,734.40

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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.