Home / 20,691,982,021.70-31,037,973,032.55-11,984,852,677.70

Finding the Fourth Proportional to 20,691,982,021.70, 31,037,973,032.55 and 11,984,852,677.70

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Solution

The fourth proportional to 20,691,982,021.70, 31,037,973,032.55 and 11,984,852,677.70 is: 17,977,279,016.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,691,982,021.70 : 31,037,973,032.55 = 11,984,852,677.70 : x
  2. Step 2: Convert to fraction form
    20,691,982,021.70/31,037,973,032.55 = 11,984,852,677.70/x
  3. Step 3: Cross multiply
    20,691,982,021.70x = 31,037,973,032.55 × 11,984,852,677.70
  4. Step 4: Simplify right side
    20,691,982,021.70x = 371,985,534,209,537,277,952
  5. Step 5: Solve for x
    x = 371,985,534,209,537,277,952/20,691,982,021.70
  6. Step 6: Final answer
    x = 17,977,279,016.55

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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.