Home / 279,936,441.60-419,904,662.40-207,377,030.40

Finding the Fourth Proportional to 279,936,441.60, 419,904,662.40 and 207,377,030.40

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Solution

The fourth proportional to 279,936,441.60, 419,904,662.40 and 207,377,030.40 is: 311,065,545.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,936,441.60 : 419,904,662.40 = 207,377,030.40 : x
  2. Step 2: Convert to fraction form
    279,936,441.60/419,904,662.40 = 207,377,030.40/x
  3. Step 3: Cross multiply
    279,936,441.60x = 419,904,662.40 × 207,377,030.40
  4. Step 4: Simplify right side
    279,936,441.60x = 87,078,581,939,626,528
  5. Step 5: Solve for x
    x = 87,078,581,939,626,528/279,936,441.60
  6. Step 6: Final answer
    x = 311,065,545.60

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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.