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Finding the Fourth Proportional to 208,751,797.68, 313,003,648.80 and 79,368,877.68

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Solution

The fourth proportional to 208,751,797.68, 313,003,648.80 and 79,368,877.68 is: 119,006,152.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,751,797.68 : 313,003,648.80 = 79,368,877.68 : x
  2. Step 2: Convert to fraction form
    208,751,797.68/313,003,648.80 = 79,368,877.68/x
  3. Step 3: Cross multiply
    208,751,797.68x = 313,003,648.80 × 79,368,877.68
  4. Step 4: Simplify right side
    208,751,797.68x = 24,842,748,315,000,880
  5. Step 5: Solve for x
    x = 24,842,748,315,000,880/208,751,797.68
  6. Step 6: Final answer
    x = 119,006,152.72

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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.