Home / 12,822,751.44-17,695,614.60-7,021,440.72

Finding the Fourth Proportional to 12,822,751.44, 17,695,614.60 and 7,021,440.72

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Solution

The fourth proportional to 12,822,751.44, 17,695,614.60 and 7,021,440.72 is: 9,689,707.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,822,751.44 : 17,695,614.60 = 7,021,440.72 : x
  2. Step 2: Convert to fraction form
    12,822,751.44/17,695,614.60 = 7,021,440.72/x
  3. Step 3: Cross multiply
    12,822,751.44x = 17,695,614.60 × 7,021,440.72
  4. Step 4: Simplify right side
    12,822,751.44x = 124,248,708,917,866.52
  5. Step 5: Solve for x
    x = 124,248,708,917,866.52/12,822,751.44
  6. Step 6: Final answer
    x = 9,689,707.35

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1.5x scale

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.