Home / 21,248,892,915.60-31,893,746,707.80-18,146,978,086.80

Finding the Fourth Proportional to 21,248,892,915.60, 31,893,746,707.80 and 18,146,978,086.80

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Solution

The fourth proportional to 21,248,892,915.60, 31,893,746,707.80 and 18,146,978,086.80 is: 27,237,895,400.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,248,892,915.60 : 31,893,746,707.80 = 18,146,978,086.80 : x
  2. Step 2: Convert to fraction form
    21,248,892,915.60/31,893,746,707.80 = 18,146,978,086.80/x
  3. Step 3: Cross multiply
    21,248,892,915.60x = 31,893,746,707.80 × 18,146,978,086.80
  4. Step 4: Simplify right side
    21,248,892,915.60x = 578,775,122,612,396,228,608
  5. Step 5: Solve for x
    x = 578,775,122,612,396,228,608/21,248,892,915.60
  6. Step 6: Final answer
    x = 27,237,895,400.54

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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.