Home / 12,828,166-17,703,154.20-7,321,430.68

Finding the Fourth Proportional to 12,828,166, 17,703,154.20 and 7,321,430.68

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Solution

The fourth proportional to 12,828,166, 17,703,154.20 and 7,321,430.68 is: 10,103,737.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,828,166 : 17,703,154.20 = 7,321,430.68 : x
  2. Step 2: Convert to fraction form
    12,828,166/17,703,154.20 = 7,321,430.68/x
  3. Step 3: Cross multiply
    12,828,166x = 17,703,154.20 × 7,321,430.68
  4. Step 4: Simplify right side
    12,828,166x = 129,612,416,292,650.84
  5. Step 5: Solve for x
    x = 129,612,416,292,650.84/12,828,166
  6. Step 6: Final answer
    x = 10,103,737.07

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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.