Home / 15,027,646.80-20,738,192.49-8,152,128.87

Finding the Fourth Proportional to 15,027,646.80, 20,738,192.49 and 8,152,128.87

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Solution

The fourth proportional to 15,027,646.80, 20,738,192.49 and 8,152,128.87 is: 11,249,959.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,027,646.80 : 20,738,192.49 = 8,152,128.87 : x
  2. Step 2: Convert to fraction form
    15,027,646.80/20,738,192.49 = 8,152,128.87/x
  3. Step 3: Cross multiply
    15,027,646.80x = 20,738,192.49 × 8,152,128.87
  4. Step 4: Simplify right side
    15,027,646.80x = 169,060,417,654,501.75
  5. Step 5: Solve for x
    x = 169,060,417,654,501.75/15,027,646.80
  6. Step 6: Final answer
    x = 11,249,959.48

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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.