Home / 21,221,475.15-31,832,172.99-6,649,510.20

Finding the Fourth Proportional to 21,221,475.15, 31,832,172.99 and 6,649,510.20

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Solution

The fourth proportional to 21,221,475.15, 31,832,172.99 and 6,649,510.20 is: 9,974,252.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,221,475.15 : 31,832,172.99 = 6,649,510.20 : x
  2. Step 2: Convert to fraction form
    21,221,475.15/31,832,172.99 = 6,649,510.20/x
  3. Step 3: Cross multiply
    21,221,475.15x = 31,832,172.99 × 6,649,510.20
  4. Step 4: Simplify right side
    21,221,475.15x = 211,668,358,960,233.84
  5. Step 5: Solve for x
    x = 211,668,358,960,233.84/21,221,475.15
  6. Step 6: Final answer
    x = 9,974,252.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.