Home / 866,189,715.80-1,299,603,438.30-283,942,956.20

Finding the Fourth Proportional to 866,189,715.80, 1,299,603,438.30 and 283,942,956.20

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Solution

The fourth proportional to 866,189,715.80, 1,299,603,438.30 and 283,942,956.20 is: 426,018,960.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,189,715.80 : 1,299,603,438.30 = 283,942,956.20 : x
  2. Step 2: Convert to fraction form
    866,189,715.80/1,299,603,438.30 = 283,942,956.20/x
  3. Step 3: Cross multiply
    866,189,715.80x = 1,299,603,438.30 × 283,942,956.20
  4. Step 4: Simplify right side
    866,189,715.80x = 369,013,242,158,586,304
  5. Step 5: Solve for x
    x = 369,013,242,158,586,304/866,189,715.80
  6. Step 6: Final answer
    x = 426,018,960.31

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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.