Home / 920,049,312.80-1,380,451,882.80-338,062,368.80

Finding the Fourth Proportional to 920,049,312.80, 1,380,451,882.80 and 338,062,368.80

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Solution

The fourth proportional to 920,049,312.80, 1,380,451,882.80 and 338,062,368.80 is: 507,232,413.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,049,312.80 : 1,380,451,882.80 = 338,062,368.80 : x
  2. Step 2: Convert to fraction form
    920,049,312.80/1,380,451,882.80 = 338,062,368.80/x
  3. Step 3: Cross multiply
    920,049,312.80x = 1,380,451,882.80 × 338,062,368.80
  4. Step 4: Simplify right side
    920,049,312.80x = 466,678,833,513,787,968
  5. Step 5: Solve for x
    x = 466,678,833,513,787,968/920,049,312.80
  6. Step 6: Final answer
    x = 507,232,413.55

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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.