Home / 403,813,820.20-605,720,730.30-289,152,034.60

Finding the Fourth Proportional to 403,813,820.20, 605,720,730.30 and 289,152,034.60

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Solution

The fourth proportional to 403,813,820.20, 605,720,730.30 and 289,152,034.60 is: 433,728,051.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,813,820.20 : 605,720,730.30 = 289,152,034.60 : x
  2. Step 2: Convert to fraction form
    403,813,820.20/605,720,730.30 = 289,152,034.60/x
  3. Step 3: Cross multiply
    403,813,820.20x = 605,720,730.30 × 289,152,034.60
  4. Step 4: Simplify right side
    403,813,820.20x = 175,145,381,565,642,880
  5. Step 5: Solve for x
    x = 175,145,381,565,642,880/403,813,820.20
  6. Step 6: Final answer
    x = 433,728,051.90

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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.