Home / 21,022,475.40-31,533,713.10-6,649,948.80

Finding the Fourth Proportional to 21,022,475.40, 31,533,713.10 and 6,649,948.80

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Solution

The fourth proportional to 21,022,475.40, 31,533,713.10 and 6,649,948.80 is: 9,974,923.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,022,475.40 : 31,533,713.10 = 6,649,948.80 : x
  2. Step 2: Convert to fraction form
    21,022,475.40/31,533,713.10 = 6,649,948.80/x
  3. Step 3: Cross multiply
    21,022,475.40x = 31,533,713.10 × 6,649,948.80
  4. Step 4: Simplify right side
    21,022,475.40x = 209,697,577,588,889.28
  5. Step 5: Solve for x
    x = 209,697,577,588,889.28/21,022,475.40
  6. Step 6: Final answer
    x = 9,974,923.20

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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.