Home / 78,038,356.50-116,734,019.84-59,453,680.15

Finding the Fourth Proportional to 78,038,356.50, 116,734,019.84 and 59,453,680.15

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Solution

The fourth proportional to 78,038,356.50, 116,734,019.84 and 59,453,680.15 is: 88,934,049.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,038,356.50 : 116,734,019.84 = 59,453,680.15 : x
  2. Step 2: Convert to fraction form
    78,038,356.50/116,734,019.84 = 59,453,680.15/x
  3. Step 3: Cross multiply
    78,038,356.50x = 116,734,019.84 × 59,453,680.15
  4. Step 4: Simplify right side
    78,038,356.50x = 6,940,267,078,262,715
  5. Step 5: Solve for x
    x = 6,940,267,078,262,715/78,038,356.50
  6. Step 6: Final answer
    x = 88,934,049.74

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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.