Home / 7,221,718.36-9,960,160.30-6,348,686.40

Finding the Fourth Proportional to 7,221,718.36, 9,960,160.30 and 6,348,686.40

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Solution

The fourth proportional to 7,221,718.36, 9,960,160.30 and 6,348,686.40 is: 8,756,078.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,221,718.36 : 9,960,160.30 = 6,348,686.40 : x
  2. Step 2: Convert to fraction form
    7,221,718.36/9,960,160.30 = 6,348,686.40/x
  3. Step 3: Cross multiply
    7,221,718.36x = 9,960,160.30 × 6,348,686.40
  4. Step 4: Simplify right side
    7,221,718.36x = 63,233,934,238,429.93
  5. Step 5: Solve for x
    x = 63,233,934,238,429.93/7,221,718.36
  6. Step 6: Final answer
    x = 8,756,078.69

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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.