Home / 660,183,521.20-990,275,281.80-354,073,505.20

Finding the Fourth Proportional to 660,183,521.20, 990,275,281.80 and 354,073,505.20

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Solution

The fourth proportional to 660,183,521.20, 990,275,281.80 and 354,073,505.20 is: 531,110,257.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,183,521.20 : 990,275,281.80 = 354,073,505.20 : x
  2. Step 2: Convert to fraction form
    660,183,521.20/990,275,281.80 = 354,073,505.20/x
  3. Step 3: Cross multiply
    660,183,521.20x = 990,275,281.80 × 354,073,505.20
  4. Step 4: Simplify right side
    660,183,521.20x = 350,630,240,139,843,712
  5. Step 5: Solve for x
    x = 350,630,240,139,843,712/660,183,521.20
  6. Step 6: Final answer
    x = 531,110,257.80

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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.