Home / 74,771,202.30-112,156,803.45-40,758,978.30

Finding the Fourth Proportional to 74,771,202.30, 112,156,803.45 and 40,758,978.30

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Solution

The fourth proportional to 74,771,202.30, 112,156,803.45 and 40,758,978.30 is: 61,138,467.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,771,202.30 : 112,156,803.45 = 40,758,978.30 : x
  2. Step 2: Convert to fraction form
    74,771,202.30/112,156,803.45 = 40,758,978.30/x
  3. Step 3: Cross multiply
    74,771,202.30x = 112,156,803.45 × 40,758,978.30
  4. Step 4: Simplify right side
    74,771,202.30x = 4,571,396,718,015,915
  5. Step 5: Solve for x
    x = 4,571,396,718,015,915/74,771,202.30
  6. Step 6: Final answer
    x = 61,138,467.45

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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.