Home / 399,176,867.10-598,765,300.65-140,390,031.90

Finding the Fourth Proportional to 399,176,867.10, 598,765,300.65 and 140,390,031.90

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Solution

The fourth proportional to 399,176,867.10, 598,765,300.65 and 140,390,031.90 is: 210,585,047.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,176,867.10 : 598,765,300.65 = 140,390,031.90 : x
  2. Step 2: Convert to fraction form
    399,176,867.10/598,765,300.65 = 140,390,031.90/x
  3. Step 3: Cross multiply
    399,176,867.10x = 598,765,300.65 × 140,390,031.90
  4. Step 4: Simplify right side
    399,176,867.10x = 84,060,679,658,866,592
  5. Step 5: Solve for x
    x = 84,060,679,658,866,592/399,176,867.10
  6. Step 6: Final answer
    x = 210,585,047.85

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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.