Home / 705,286,977.40-1,057,941,019.86-268,611,778.36

Finding the Fourth Proportional to 705,286,977.40, 1,057,941,019.86 and 268,611,778.36

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Solution

The fourth proportional to 705,286,977.40, 1,057,941,019.86 and 268,611,778.36 is: 402,921,686.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,286,977.40 : 1,057,941,019.86 = 268,611,778.36 : x
  2. Step 2: Convert to fraction form
    705,286,977.40/1,057,941,019.86 = 268,611,778.36/x
  3. Step 3: Cross multiply
    705,286,977.40x = 1,057,941,019.86 × 268,611,778.36
  4. Step 4: Simplify right side
    705,286,977.40x = 284,175,418,744,586,688
  5. Step 5: Solve for x
    x = 284,175,418,744,586,688/705,286,977.40
  6. Step 6: Final answer
    x = 402,921,686.99

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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.