Home / 7,939,718.40-11,909,577.60-7,207,510.80

Finding the Fourth Proportional to 7,939,718.40, 11,909,577.60 and 7,207,510.80

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Solution

The fourth proportional to 7,939,718.40, 11,909,577.60 and 7,207,510.80 is: 10,811,266.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,939,718.40 : 11,909,577.60 = 7,207,510.80 : x
  2. Step 2: Convert to fraction form
    7,939,718.40/11,909,577.60 = 7,207,510.80/x
  3. Step 3: Cross multiply
    7,939,718.40x = 11,909,577.60 × 7,207,510.80
  4. Step 4: Simplify right side
    7,939,718.40x = 85,838,409,175,438.08
  5. Step 5: Solve for x
    x = 85,838,409,175,438.08/7,939,718.40
  6. Step 6: Final answer
    x = 10,811,266.20

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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.