Home / 219,543,746.28-329,322,442.86-81,403,728.36

Finding the Fourth Proportional to 219,543,746.28, 329,322,442.86 and 81,403,728.36

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Solution

The fourth proportional to 219,543,746.28, 329,322,442.86 and 81,403,728.36 is: 122,108,122.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,543,746.28 : 329,322,442.86 = 81,403,728.36 : x
  2. Step 2: Convert to fraction form
    219,543,746.28/329,322,442.86 = 81,403,728.36/x
  3. Step 3: Cross multiply
    219,543,746.28x = 329,322,442.86 × 81,403,728.36
  4. Step 4: Simplify right side
    219,543,746.28x = 26,808,074,681,427,064
  5. Step 5: Solve for x
    x = 26,808,074,681,427,064/219,543,746.28
  6. Step 6: Final answer
    x = 122,108,122.58

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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.