Home / 408,915,792.32-564,301,561.34-223,275,479.40

Finding the Fourth Proportional to 408,915,792.32, 564,301,561.34 and 223,275,479.40

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Solution

The fourth proportional to 408,915,792.32, 564,301,561.34 and 223,275,479.40 is: 308,118,942.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,915,792.32 : 564,301,561.34 = 223,275,479.40 : x
  2. Step 2: Convert to fraction form
    408,915,792.32/564,301,561.34 = 223,275,479.40/x
  3. Step 3: Cross multiply
    408,915,792.32x = 564,301,561.34 × 223,275,479.40
  4. Step 4: Simplify right side
    408,915,792.32x = 125,994,701,634,910,720
  5. Step 5: Solve for x
    x = 125,994,701,634,910,720/408,915,792.32
  6. Step 6: Final answer
    x = 308,118,942.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.