Home / 851,776,724.80-1,277,665,087.20-306,321,428.80

Finding the Fourth Proportional to 851,776,724.80, 1,277,665,087.20 and 306,321,428.80

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Solution

The fourth proportional to 851,776,724.80, 1,277,665,087.20 and 306,321,428.80 is: 459,482,143.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,776,724.80 : 1,277,665,087.20 = 306,321,428.80 : x
  2. Step 2: Convert to fraction form
    851,776,724.80/1,277,665,087.20 = 306,321,428.80/x
  3. Step 3: Cross multiply
    851,776,724.80x = 1,277,665,087.20 × 306,321,428.80
  4. Step 4: Simplify right side
    851,776,724.80x = 391,376,195,038,980,608
  5. Step 5: Solve for x
    x = 391,376,195,038,980,608/851,776,724.80
  6. Step 6: Final answer
    x = 459,482,143.20

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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.