Home / 145,221,889.02-200,406,209.90-80,031,793.02

Finding the Fourth Proportional to 145,221,889.02, 200,406,209.90 and 80,031,793.02

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Solution

The fourth proportional to 145,221,889.02, 200,406,209.90 and 80,031,793.02 is: 110,443,876.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,221,889.02 : 200,406,209.90 = 80,031,793.02 : x
  2. Step 2: Convert to fraction form
    145,221,889.02/200,406,209.90 = 80,031,793.02/x
  3. Step 3: Cross multiply
    145,221,889.02x = 200,406,209.90 × 80,031,793.02
  4. Step 4: Simplify right side
    145,221,889.02x = 16,038,868,310,639,474
  5. Step 5: Solve for x
    x = 16,038,868,310,639,474/145,221,889.02
  6. Step 6: Final answer
    x = 110,443,876.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.