Home / 12,976,085.12-17,906,228.07-7,174,411.52

Finding the Fourth Proportional to 12,976,085.12, 17,906,228.07 and 7,174,411.52

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Solution

The fourth proportional to 12,976,085.12, 17,906,228.07 and 7,174,411.52 is: 9,900,262.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,976,085.12 : 17,906,228.07 = 7,174,411.52 : x
  2. Step 2: Convert to fraction form
    12,976,085.12/17,906,228.07 = 7,174,411.52/x
  3. Step 3: Cross multiply
    12,976,085.12x = 17,906,228.07 × 7,174,411.52
  4. Step 4: Simplify right side
    12,976,085.12x = 128,466,648,945,155.36
  5. Step 5: Solve for x
    x = 128,466,648,945,155.36/12,976,085.12
  6. Step 6: Final answer
    x = 9,900,262.50

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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.