Home / 138,429,285.30-207,643,927.95-115,922,430.90

Finding the Fourth Proportional to 138,429,285.30, 207,643,927.95 and 115,922,430.90

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Solution

The fourth proportional to 138,429,285.30, 207,643,927.95 and 115,922,430.90 is: 173,883,646.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,429,285.30 : 207,643,927.95 = 115,922,430.90 : x
  2. Step 2: Convert to fraction form
    138,429,285.30/207,643,927.95 = 115,922,430.90/x
  3. Step 3: Cross multiply
    138,429,285.30x = 207,643,927.95 × 115,922,430.90
  4. Step 4: Simplify right side
    138,429,285.30x = 24,070,588,889,588,452
  5. Step 5: Solve for x
    x = 24,070,588,889,588,452/138,429,285.30
  6. Step 6: Final answer
    x = 173,883,646.35

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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.