Home / 74,680,081.30-112,020,121.95-65,722,129.30

Finding the Fourth Proportional to 74,680,081.30, 112,020,121.95 and 65,722,129.30

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Solution

The fourth proportional to 74,680,081.30, 112,020,121.95 and 65,722,129.30 is: 98,583,193.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,680,081.30 : 112,020,121.95 = 65,722,129.30 : x
  2. Step 2: Convert to fraction form
    74,680,081.30/112,020,121.95 = 65,722,129.30/x
  3. Step 3: Cross multiply
    74,680,081.30x = 112,020,121.95 × 65,722,129.30
  4. Step 4: Simplify right side
    74,680,081.30x = 7,362,200,938,999,668
  5. Step 5: Solve for x
    x = 7,362,200,938,999,668/74,680,081.30
  6. Step 6: Final answer
    x = 98,583,193.95

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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.