Home / 399,182,000.40-599,220,898.20-308,706,685.20

Finding the Fourth Proportional to 399,182,000.40, 599,220,898.20 and 308,706,685.20

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Solution

The fourth proportional to 399,182,000.40, 599,220,898.20 and 308,706,685.20 is: 463,406,408.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,182,000.40 : 599,220,898.20 = 308,706,685.20 : x
  2. Step 2: Convert to fraction form
    399,182,000.40/599,220,898.20 = 308,706,685.20/x
  3. Step 3: Cross multiply
    399,182,000.40x = 599,220,898.20 × 308,706,685.20
  4. Step 4: Simplify right side
    399,182,000.40x = 184,983,497,185,888,640
  5. Step 5: Solve for x
    x = 184,983,497,185,888,640/399,182,000.40
  6. Step 6: Final answer
    x = 463,406,408.61

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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.