Home / 100,439,192.52-138,621,213.29-61,303,711.20

Finding the Fourth Proportional to 100,439,192.52, 138,621,213.29 and 61,303,711.20

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Solution

The fourth proportional to 100,439,192.52, 138,621,213.29 and 61,303,711.20 is: 84,608,354.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,439,192.52 : 138,621,213.29 = 61,303,711.20 : x
  2. Step 2: Convert to fraction form
    100,439,192.52/138,621,213.29 = 61,303,711.20/x
  3. Step 3: Cross multiply
    100,439,192.52x = 138,621,213.29 × 61,303,711.20
  4. Step 4: Simplify right side
    100,439,192.52x = 8,497,994,825,723,762
  5. Step 5: Solve for x
    x = 8,497,994,825,723,762/100,439,192.52
  6. Step 6: Final answer
    x = 84,608,354.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.