Home / 20,862,148,851.90-31,282,473,735.45-7,769,206,208.70

Finding the Fourth Proportional to 20,862,148,851.90, 31,282,473,735.45 and 7,769,206,208.70

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Solution

The fourth proportional to 20,862,148,851.90, 31,282,473,735.45 and 7,769,206,208.70 is: 11,649,806,110.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,862,148,851.90 : 31,282,473,735.45 = 7,769,206,208.70 : x
  2. Step 2: Convert to fraction form
    20,862,148,851.90/31,282,473,735.45 = 7,769,206,208.70/x
  3. Step 3: Cross multiply
    20,862,148,851.90x = 31,282,473,735.45 × 7,769,206,208.70
  4. Step 4: Simplify right side
    20,862,148,851.90x = 243,039,989,168,952,836,096
  5. Step 5: Solve for x
    x = 243,039,989,168,952,836,096/20,862,148,851.90
  6. Step 6: Final answer
    x = 11,649,806,110.30

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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.