Home / 145,168,987.20-217,753,480.80-131,732,059.20

Finding the Fourth Proportional to 145,168,987.20, 217,753,480.80 and 131,732,059.20

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Solution

The fourth proportional to 145,168,987.20, 217,753,480.80 and 131,732,059.20 is: 197,598,088.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,168,987.20 : 217,753,480.80 = 131,732,059.20 : x
  2. Step 2: Convert to fraction form
    145,168,987.20/217,753,480.80 = 131,732,059.20/x
  3. Step 3: Cross multiply
    145,168,987.20x = 217,753,480.80 × 131,732,059.20
  4. Step 4: Simplify right side
    145,168,987.20x = 28,685,114,423,751,664
  5. Step 5: Solve for x
    x = 28,685,114,423,751,664/145,168,987.20
  6. Step 6: Final answer
    x = 197,598,088.80

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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.