Home / 398,446,328.28-596,443,665.96-259,973,769.72

Finding the Fourth Proportional to 398,446,328.28, 596,443,665.96 and 259,973,769.72

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Solution

The fourth proportional to 398,446,328.28, 596,443,665.96 and 259,973,769.72 is: 389,160,841.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,446,328.28 : 596,443,665.96 = 259,973,769.72 : x
  2. Step 2: Convert to fraction form
    398,446,328.28/596,443,665.96 = 259,973,769.72/x
  3. Step 3: Cross multiply
    398,446,328.28x = 596,443,665.96 × 259,973,769.72
  4. Step 4: Simplify right side
    398,446,328.28x = 155,059,708,265,237,664
  5. Step 5: Solve for x
    x = 155,059,708,265,237,664/398,446,328.28
  6. Step 6: Final answer
    x = 389,160,841.15

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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.