Home / 442,656,000.20-663,984,000.30-289,773,619.40

Finding the Fourth Proportional to 442,656,000.20, 663,984,000.30 and 289,773,619.40

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Solution

The fourth proportional to 442,656,000.20, 663,984,000.30 and 289,773,619.40 is: 434,660,429.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,656,000.20 : 663,984,000.30 = 289,773,619.40 : x
  2. Step 2: Convert to fraction form
    442,656,000.20/663,984,000.30 = 289,773,619.40/x
  3. Step 3: Cross multiply
    442,656,000.20x = 663,984,000.30 × 289,773,619.40
  4. Step 4: Simplify right side
    442,656,000.20x = 192,405,046,990,621,664
  5. Step 5: Solve for x
    x = 192,405,046,990,621,664/442,656,000.20
  6. Step 6: Final answer
    x = 434,660,429.10

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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.