Home / 12,928,085.04-17,840,811.36-7,126,739.49

Finding the Fourth Proportional to 12,928,085.04, 17,840,811.36 and 7,126,739.49

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Solution

The fourth proportional to 12,928,085.04, 17,840,811.36 and 7,126,739.49 is: 9,834,930.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,928,085.04 : 17,840,811.36 = 7,126,739.49 : x
  2. Step 2: Convert to fraction form
    12,928,085.04/17,840,811.36 = 7,126,739.49/x
  3. Step 3: Cross multiply
    12,928,085.04x = 17,840,811.36 × 7,126,739.49
  4. Step 4: Simplify right side
    12,928,085.04x = 127,146,814,852,952.61
  5. Step 5: Solve for x
    x = 127,146,814,852,952.61/12,928,085.04
  6. Step 6: Final answer
    x = 9,834,930.27

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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.