Home / 21,021,773.40-31,532,660.10-6,649,246.80

Finding the Fourth Proportional to 21,021,773.40, 31,532,660.10 and 6,649,246.80

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Solution

The fourth proportional to 21,021,773.40, 31,532,660.10 and 6,649,246.80 is: 9,973,870.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,021,773.40 : 31,532,660.10 = 6,649,246.80 : x
  2. Step 2: Convert to fraction form
    21,021,773.40/31,532,660.10 = 6,649,246.80/x
  3. Step 3: Cross multiply
    21,021,773.40x = 31,532,660.10 × 6,649,246.80
  4. Step 4: Simplify right side
    21,021,773.40x = 209,668,439,265,412.69
  5. Step 5: Solve for x
    x = 209,668,439,265,412.69/21,021,773.40
  6. Step 6: Final answer
    x = 9,973,870.20

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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.