Home / 280,020,565.40-419,904,876.90-107,440,021.40

Finding the Fourth Proportional to 280,020,565.40, 419,904,876.90 and 107,440,021.40

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Solution

The fourth proportional to 280,020,565.40, 419,904,876.90 and 107,440,021.40 is: 161,111,698.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,020,565.40 : 419,904,876.90 = 107,440,021.40 : x
  2. Step 2: Convert to fraction form
    280,020,565.40/419,904,876.90 = 107,440,021.40/x
  3. Step 3: Cross multiply
    280,020,565.40x = 419,904,876.90 × 107,440,021.40
  4. Step 4: Simplify right side
    280,020,565.40x = 45,114,588,960,100,368
  5. Step 5: Solve for x
    x = 45,114,588,960,100,368/280,020,565.40
  6. Step 6: Final answer
    x = 161,111,698.69

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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.