Home / 78,721,542,766.17-108,638,811,887.31-44,428,447,216.80

Finding the Fourth Proportional to 78,721,542,766.17, 108,638,811,887.31 and 44,428,447,216.80

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Solution

The fourth proportional to 78,721,542,766.17, 108,638,811,887.31 and 44,428,447,216.80 is: 61,312,997,053.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,721,542,766.17 : 108,638,811,887.31 = 44,428,447,216.80 : x
  2. Step 2: Convert to fraction form
    78,721,542,766.17/108,638,811,887.31 = 44,428,447,216.80/x
  3. Step 3: Cross multiply
    78,721,542,766.17x = 108,638,811,887.31 × 44,428,447,216.80
  4. Step 4: Simplify right side
    78,721,542,766.17x = 4,826,653,719,631,217,295,360
  5. Step 5: Solve for x
    x = 4,826,653,719,631,217,295,360/78,721,542,766.17
  6. Step 6: Final answer
    x = 61,312,997,053.02

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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.