Home / 287,451,618.40-431,240,413.20-93,329,999.20

Finding the Fourth Proportional to 287,451,618.40, 431,240,413.20 and 93,329,999.20

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Solution

The fourth proportional to 287,451,618.40, 431,240,413.20 and 93,329,999.20 is: 140,015,449.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,451,618.40 : 431,240,413.20 = 93,329,999.20 : x
  2. Step 2: Convert to fraction form
    287,451,618.40/431,240,413.20 = 93,329,999.20/x
  3. Step 3: Cross multiply
    287,451,618.40x = 431,240,413.20 × 93,329,999.20
  4. Step 4: Simplify right side
    287,451,618.40x = 40,247,667,418,963,672
  5. Step 5: Solve for x
    x = 40,247,667,418,963,672/287,451,618.40
  6. Step 6: Final answer
    x = 140,015,449.01

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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.