Home / 154,912,124.16-213,780,150.72-85,299,995.16

Finding the Fourth Proportional to 154,912,124.16, 213,780,150.72 and 85,299,995.16

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Solution

The fourth proportional to 154,912,124.16, 213,780,150.72 and 85,299,995.16 is: 117,714,774.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,912,124.16 : 213,780,150.72 = 85,299,995.16 : x
  2. Step 2: Convert to fraction form
    154,912,124.16/213,780,150.72 = 85,299,995.16/x
  3. Step 3: Cross multiply
    154,912,124.16x = 213,780,150.72 × 85,299,995.16
  4. Step 4: Simplify right side
    154,912,124.16x = 18,235,445,821,720,068
  5. Step 5: Solve for x
    x = 18,235,445,821,720,068/154,912,124.16
  6. Step 6: Final answer
    x = 117,714,774.88

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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.