Home / 78,887,862.40-118,275,806.40-35,777,718.40

Finding the Fourth Proportional to 78,887,862.40, 118,275,806.40 and 35,777,718.40

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Solution

The fourth proportional to 78,887,862.40, 118,275,806.40 and 35,777,718.40 is: 53,641,185.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,887,862.40 : 118,275,806.40 = 35,777,718.40 : x
  2. Step 2: Convert to fraction form
    78,887,862.40/118,275,806.40 = 35,777,718.40/x
  3. Step 3: Cross multiply
    78,887,862.40x = 118,275,806.40 × 35,777,718.40
  4. Step 4: Simplify right side
    78,887,862.40x = 4,231,638,494,912,118
  5. Step 5: Solve for x
    x = 4,231,638,494,912,118/78,887,862.40
  6. Step 6: Final answer
    x = 53,641,185.93

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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.