Home / 21,248,893,005.60-31,893,746,842.80-18,146,978,176.80

Finding the Fourth Proportional to 21,248,893,005.60, 31,893,746,842.80 and 18,146,978,176.80

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Solution

The fourth proportional to 21,248,893,005.60, 31,893,746,842.80 and 18,146,978,176.80 is: 27,237,895,535.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,248,893,005.60 : 31,893,746,842.80 = 18,146,978,176.80 : x
  2. Step 2: Convert to fraction form
    21,248,893,005.60/31,893,746,842.80 = 18,146,978,176.80/x
  3. Step 3: Cross multiply
    21,248,893,005.60x = 31,893,746,842.80 × 18,146,978,176.80
  4. Step 4: Simplify right side
    21,248,893,005.60x = 578,775,127,932,675,489,792
  5. Step 5: Solve for x
    x = 578,775,127,932,675,489,792/21,248,893,005.60
  6. Step 6: Final answer
    x = 27,237,895,535.55

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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.