Home / 74,721,172.23-112,114,129.20-40,137,223.72

Finding the Fourth Proportional to 74,721,172.23, 112,114,129.20 and 40,137,223.72

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Solution

The fourth proportional to 74,721,172.23, 112,114,129.20 and 40,137,223.72 is: 60,223,223.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,721,172.23 : 112,114,129.20 = 40,137,223.72 : x
  2. Step 2: Convert to fraction form
    74,721,172.23/112,114,129.20 = 40,137,223.72/x
  3. Step 3: Cross multiply
    74,721,172.23x = 112,114,129.20 × 40,137,223.72
  4. Step 4: Simplify right side
    74,721,172.23x = 4,499,949,885,467,070
  5. Step 5: Solve for x
    x = 4,499,949,885,467,070/74,721,172.23
  6. Step 6: Final answer
    x = 60,223,223.90

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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.