Home / 72,578,445.95-108,718,369.72-36,696,871.55

Finding the Fourth Proportional to 72,578,445.95, 108,718,369.72 and 36,696,871.55

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Solution

The fourth proportional to 72,578,445.95, 108,718,369.72 and 36,696,871.55 is: 54,969,819.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,578,445.95 : 108,718,369.72 = 36,696,871.55 : x
  2. Step 2: Convert to fraction form
    72,578,445.95/108,718,369.72 = 36,696,871.55/x
  3. Step 3: Cross multiply
    72,578,445.95x = 108,718,369.72 × 36,696,871.55
  4. Step 4: Simplify right side
    72,578,445.95x = 3,989,624,048,740,249
  5. Step 5: Solve for x
    x = 3,989,624,048,740,249/72,578,445.95
  6. Step 6: Final answer
    x = 54,969,819.16

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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.