Home / 156,019,217.16-215,202,848.34-100,335,039.24

Finding the Fourth Proportional to 156,019,217.16, 215,202,848.34 and 100,335,039.24

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Solution

The fourth proportional to 156,019,217.16, 215,202,848.34 and 100,335,039.24 is: 138,395,683.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,019,217.16 : 215,202,848.34 = 100,335,039.24 : x
  2. Step 2: Convert to fraction form
    156,019,217.16/215,202,848.34 = 100,335,039.24/x
  3. Step 3: Cross multiply
    156,019,217.16x = 215,202,848.34 × 100,335,039.24
  4. Step 4: Simplify right side
    156,019,217.16x = 21,592,386,232,753,668
  5. Step 5: Solve for x
    x = 21,592,386,232,753,668/156,019,217.16
  6. Step 6: Final answer
    x = 138,395,683.72

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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.