Home / 927,040,672.60-1,390,561,008.90-912,707,949.40

Finding the Fourth Proportional to 927,040,672.60, 1,390,561,008.90 and 912,707,949.40

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Solution

The fourth proportional to 927,040,672.60, 1,390,561,008.90 and 912,707,949.40 is: 1,369,061,924.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,040,672.60 : 1,390,561,008.90 = 912,707,949.40 : x
  2. Step 2: Convert to fraction form
    927,040,672.60/1,390,561,008.90 = 912,707,949.40/x
  3. Step 3: Cross multiply
    927,040,672.60x = 1,390,561,008.90 × 912,707,949.40
  4. Step 4: Simplify right side
    927,040,672.60x = 1,269,176,086,948,714,240
  5. Step 5: Solve for x
    x = 1,269,176,086,948,714,240/927,040,672.60
  6. Step 6: Final answer
    x = 1,369,061,924.10

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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.