Home / 687,479,031.04-1,031,208,442.60-169,909,515.96

Finding the Fourth Proportional to 687,479,031.04, 1,031,208,442.60 and 169,909,515.96

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Solution

The fourth proportional to 687,479,031.04, 1,031,208,442.60 and 169,909,515.96 is: 254,861,776.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,479,031.04 : 1,031,208,442.60 = 169,909,515.96 : x
  2. Step 2: Convert to fraction form
    687,479,031.04/1,031,208,442.60 = 169,909,515.96/x
  3. Step 3: Cross multiply
    687,479,031.04x = 1,031,208,442.60 × 169,909,515.96
  4. Step 4: Simplify right side
    687,479,031.04x = 175,212,127,336,031,456
  5. Step 5: Solve for x
    x = 175,212,127,336,031,456/687,479,031.04
  6. Step 6: Final answer
    x = 254,861,776.76

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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.