Home / 660,484,839.20-990,727,258.80-354,374,823.20

Finding the Fourth Proportional to 660,484,839.20, 990,727,258.80 and 354,374,823.20

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Solution

The fourth proportional to 660,484,839.20, 990,727,258.80 and 354,374,823.20 is: 531,562,234.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,484,839.20 : 990,727,258.80 = 354,374,823.20 : x
  2. Step 2: Convert to fraction form
    660,484,839.20/990,727,258.80 = 354,374,823.20/x
  3. Step 3: Cross multiply
    660,484,839.20x = 990,727,258.80 × 354,374,823.20
  4. Step 4: Simplify right side
    660,484,839.20x = 351,088,797,176,670,592
  5. Step 5: Solve for x
    x = 351,088,797,176,670,592/660,484,839.20
  6. Step 6: Final answer
    x = 531,562,234.80

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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.