Home / 21,021,127.20-31,525,785.90-6,648,600.60

Finding the Fourth Proportional to 21,021,127.20, 31,525,785.90 and 6,648,600.60

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Solution

The fourth proportional to 21,021,127.20, 31,525,785.90 and 6,648,600.60 is: 9,971,033.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,021,127.20 : 31,525,785.90 = 6,648,600.60 : x
  2. Step 2: Convert to fraction form
    21,021,127.20/31,525,785.90 = 6,648,600.60/x
  3. Step 3: Cross multiply
    21,021,127.20x = 31,525,785.90 × 6,648,600.60
  4. Step 4: Simplify right side
    21,021,127.20x = 209,602,359,050,211.53
  5. Step 5: Solve for x
    x = 209,602,359,050,211.53/21,021,127.20
  6. Step 6: Final answer
    x = 9,971,033.29

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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.