Home / 20,155,443,618.80-30,233,165,428.20-9,114,319,881.20

Finding the Fourth Proportional to 20,155,443,618.80, 30,233,165,428.20 and 9,114,319,881.20

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Solution

The fourth proportional to 20,155,443,618.80, 30,233,165,428.20 and 9,114,319,881.20 is: 13,671,479,821.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,155,443,618.80 : 30,233,165,428.20 = 9,114,319,881.20 : x
  2. Step 2: Convert to fraction form
    20,155,443,618.80/30,233,165,428.20 = 9,114,319,881.20/x
  3. Step 3: Cross multiply
    20,155,443,618.80x = 30,233,165,428.20 × 9,114,319,881.20
  4. Step 4: Simplify right side
    20,155,443,618.80x = 275,554,740,733,851,795,456
  5. Step 5: Solve for x
    x = 275,554,740,733,851,795,456/20,155,443,618.80
  6. Step 6: Final answer
    x = 13,671,479,821.80

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1.5x scale

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.