Home / 145,152,023.10-217,728,034.65-87,821,130.30

Finding the Fourth Proportional to 145,152,023.10, 217,728,034.65 and 87,821,130.30

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Solution

The fourth proportional to 145,152,023.10, 217,728,034.65 and 87,821,130.30 is: 131,731,695.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,152,023.10 : 217,728,034.65 = 87,821,130.30 : x
  2. Step 2: Convert to fraction form
    145,152,023.10/217,728,034.65 = 87,821,130.30/x
  3. Step 3: Cross multiply
    145,152,023.10x = 217,728,034.65 × 87,821,130.30
  4. Step 4: Simplify right side
    145,152,023.10x = 19,121,122,100,960,564
  5. Step 5: Solve for x
    x = 19,121,122,100,960,564/145,152,023.10
  6. Step 6: Final answer
    x = 131,731,695.45

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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.