Home / 20,862,148,851.40-31,282,473,734.70-7,769,206,208.20

Finding the Fourth Proportional to 20,862,148,851.40, 31,282,473,734.70 and 7,769,206,208.20

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Solution

The fourth proportional to 20,862,148,851.40, 31,282,473,734.70 and 7,769,206,208.20 is: 11,649,806,109.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,862,148,851.40 : 31,282,473,734.70 = 7,769,206,208.20 : x
  2. Step 2: Convert to fraction form
    20,862,148,851.40/31,282,473,734.70 = 7,769,206,208.20/x
  3. Step 3: Cross multiply
    20,862,148,851.40x = 31,282,473,734.70 × 7,769,206,208.20
  4. Step 4: Simplify right side
    20,862,148,851.40x = 243,039,989,147,484,684,288
  5. Step 5: Solve for x
    x = 243,039,989,147,484,684,288/20,862,148,851.40
  6. Step 6: Final answer
    x = 11,649,806,109.56

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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.