Home / 137,180,802.72-189,309,778.32-81,437,404.08

Finding the Fourth Proportional to 137,180,802.72, 189,309,778.32 and 81,437,404.08

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Solution

The fourth proportional to 137,180,802.72, 189,309,778.32 and 81,437,404.08 is: 112,383,778.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,180,802.72 : 189,309,778.32 = 81,437,404.08 : x
  2. Step 2: Convert to fraction form
    137,180,802.72/189,309,778.32 = 81,437,404.08/x
  3. Step 3: Cross multiply
    137,180,802.72x = 189,309,778.32 × 81,437,404.08
  4. Step 4: Simplify right side
    137,180,802.72x = 15,416,896,913,341,062
  5. Step 5: Solve for x
    x = 15,416,896,913,341,062/137,180,802.72
  6. Step 6: Final answer
    x = 112,383,778.25

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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.