Home / 20,989,929,954.80-31,496,988,167.40-7,913,111,625.20

Finding the Fourth Proportional to 20,989,929,954.80, 31,496,988,167.40 and 7,913,111,625.20

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Solution

The fourth proportional to 20,989,929,954.80, 31,496,988,167.40 and 7,913,111,625.20 is: 11,874,226,534.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,989,929,954.80 : 31,496,988,167.40 = 7,913,111,625.20 : x
  2. Step 2: Convert to fraction form
    20,989,929,954.80/31,496,988,167.40 = 7,913,111,625.20/x
  3. Step 3: Cross multiply
    20,989,929,954.80x = 31,496,988,167.40 × 7,913,111,625.20
  4. Step 4: Simplify right side
    20,989,929,954.80x = 249,239,183,226,239,778,816
  5. Step 5: Solve for x
    x = 249,239,183,226,239,778,816/20,989,929,954.80
  6. Step 6: Final answer
    x = 11,874,226,534.48

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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.