Home / 21,275,231,036.10-31,912,846,554.15-12,459,262,575.30

Finding the Fourth Proportional to 21,275,231,036.10, 31,912,846,554.15 and 12,459,262,575.30

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Solution

The fourth proportional to 21,275,231,036.10, 31,912,846,554.15 and 12,459,262,575.30 is: 18,688,893,862.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,275,231,036.10 : 31,912,846,554.15 = 12,459,262,575.30 : x
  2. Step 2: Convert to fraction form
    21,275,231,036.10/31,912,846,554.15 = 12,459,262,575.30/x
  3. Step 3: Cross multiply
    21,275,231,036.10x = 31,912,846,554.15 × 12,459,262,575.30
  4. Step 4: Simplify right side
    21,275,231,036.10x = 397,610,534,743,412,637,696
  5. Step 5: Solve for x
    x = 397,610,534,743,412,637,696/21,275,231,036.10
  6. Step 6: Final answer
    x = 18,688,893,862.95

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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.