Home / 559,871,999.80-839,807,999.70-342,193,766.20

Finding the Fourth Proportional to 559,871,999.80, 839,807,999.70 and 342,193,766.20

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Solution

The fourth proportional to 559,871,999.80, 839,807,999.70 and 342,193,766.20 is: 513,290,649.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,871,999.80 : 839,807,999.70 = 342,193,766.20 : x
  2. Step 2: Convert to fraction form
    559,871,999.80/839,807,999.70 = 342,193,766.20/x
  3. Step 3: Cross multiply
    559,871,999.80x = 839,807,999.70 × 342,193,766.20
  4. Step 4: Simplify right side
    559,871,999.80x = 287,377,062,302,231,488
  5. Step 5: Solve for x
    x = 287,377,062,302,231,488/559,871,999.80
  6. Step 6: Final answer
    x = 513,290,649.30

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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.