Home / 74,745,138.30-112,117,707.45-40,732,914.30

Finding the Fourth Proportional to 74,745,138.30, 112,117,707.45 and 40,732,914.30

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Solution

The fourth proportional to 74,745,138.30, 112,117,707.45 and 40,732,914.30 is: 61,099,371.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,745,138.30 : 112,117,707.45 = 40,732,914.30 : x
  2. Step 2: Convert to fraction form
    74,745,138.30/112,117,707.45 = 40,732,914.30/x
  3. Step 3: Cross multiply
    74,745,138.30x = 112,117,707.45 × 40,732,914.30
  4. Step 4: Simplify right side
    74,745,138.30x = 4,566,880,969,073,321
  5. Step 5: Solve for x
    x = 4,566,880,969,073,321/74,745,138.30
  6. Step 6: Final answer
    x = 61,099,371.45

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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.