Home / 15,579,196.80-21,500,300.52-8,703,715.92

Finding the Fourth Proportional to 15,579,196.80, 21,500,300.52 and 8,703,715.92

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Solution

The fourth proportional to 15,579,196.80, 21,500,300.52 and 8,703,715.92 is: 12,011,691.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,579,196.80 : 21,500,300.52 = 8,703,715.92 : x
  2. Step 2: Convert to fraction form
    15,579,196.80/21,500,300.52 = 8,703,715.92/x
  3. Step 3: Cross multiply
    15,579,196.80x = 21,500,300.52 × 8,703,715.92
  4. Step 4: Simplify right side
    15,579,196.80x = 187,132,507,920,708.28
  5. Step 5: Solve for x
    x = 187,132,507,920,708.28/15,579,196.80
  6. Step 6: Final answer
    x = 12,011,691.64

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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.