Home / 20,691,982,024.20-31,037,973,036.30-11,984,852,680.20

Finding the Fourth Proportional to 20,691,982,024.20, 31,037,973,036.30 and 11,984,852,680.20

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Solution

The fourth proportional to 20,691,982,024.20, 31,037,973,036.30 and 11,984,852,680.20 is: 17,977,279,020.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,691,982,024.20 : 31,037,973,036.30 = 11,984,852,680.20 : x
  2. Step 2: Convert to fraction form
    20,691,982,024.20/31,037,973,036.30 = 11,984,852,680.20/x
  3. Step 3: Cross multiply
    20,691,982,024.20x = 31,037,973,036.30 × 11,984,852,680.20
  4. Step 4: Simplify right side
    20,691,982,024.20x = 371,985,534,332,075,376,640
  5. Step 5: Solve for x
    x = 371,985,534,332,075,376,640/20,691,982,024.20
  6. Step 6: Final answer
    x = 17,977,279,020.30

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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.