Home / 815,948,758.89-1,125,976,437.63-444,662,818.65

Finding the Fourth Proportional to 815,948,758.89, 1,125,976,437.63 and 444,662,818.65

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Solution

The fourth proportional to 815,948,758.89, 1,125,976,437.63 and 444,662,818.65 is: 613,616,787.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,948,758.89 : 1,125,976,437.63 = 444,662,818.65 : x
  2. Step 2: Convert to fraction form
    815,948,758.89/1,125,976,437.63 = 444,662,818.65/x
  3. Step 3: Cross multiply
    815,948,758.89x = 1,125,976,437.63 × 444,662,818.65
  4. Step 4: Simplify right side
    815,948,758.89x = 500,679,856,490,041,728
  5. Step 5: Solve for x
    x = 500,679,856,490,041,728/815,948,758.89
  6. Step 6: Final answer
    x = 613,616,787.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.