Home / 43,158,820.20-64,631,942.10-20,413,145.40

Finding the Fourth Proportional to 43,158,820.20, 64,631,942.10 and 20,413,145.40

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Solution

The fourth proportional to 43,158,820.20, 64,631,942.10 and 20,413,145.40 is: 30,569,446.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,158,820.20 : 64,631,942.10 = 20,413,145.40 : x
  2. Step 2: Convert to fraction form
    43,158,820.20/64,631,942.10 = 20,413,145.40/x
  3. Step 3: Cross multiply
    43,158,820.20x = 64,631,942.10 × 20,413,145.40
  4. Step 4: Simplify right side
    43,158,820.20x = 1,319,341,231,571,681.25
  5. Step 5: Solve for x
    x = 1,319,341,231,571,681.25/43,158,820.20
  6. Step 6: Final answer
    x = 30,569,446.19

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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.