Home / 485,637,149.22-728,351,352.81-153,670,465.50

Finding the Fourth Proportional to 485,637,149.22, 728,351,352.81 and 153,670,465.50

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Solution

The fourth proportional to 485,637,149.22, 728,351,352.81 and 153,670,465.50 is: 230,472,672.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,637,149.22 : 728,351,352.81 = 153,670,465.50 : x
  2. Step 2: Convert to fraction form
    485,637,149.22/728,351,352.81 = 153,670,465.50/x
  3. Step 3: Cross multiply
    485,637,149.22x = 728,351,352.81 × 153,670,465.50
  4. Step 4: Simplify right side
    485,637,149.22x = 111,926,091,433,867,424
  5. Step 5: Solve for x
    x = 111,926,091,433,867,424/485,637,149.22
  6. Step 6: Final answer
    x = 230,472,672.06

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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.