Home / 79,245,181.80-118,867,772.70-69,891,820.20

Finding the Fourth Proportional to 79,245,181.80, 118,867,772.70 and 69,891,820.20

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Solution

The fourth proportional to 79,245,181.80, 118,867,772.70 and 69,891,820.20 is: 104,837,730.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,245,181.80 : 118,867,772.70 = 69,891,820.20 : x
  2. Step 2: Convert to fraction form
    79,245,181.80/118,867,772.70 = 69,891,820.20/x
  3. Step 3: Cross multiply
    79,245,181.80x = 118,867,772.70 × 69,891,820.20
  4. Step 4: Simplify right side
    79,245,181.80x = 8,307,884,997,122,869
  5. Step 5: Solve for x
    x = 8,307,884,997,122,869/79,245,181.80
  6. Step 6: Final answer
    x = 104,837,730.30

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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.