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Finding the Fourth Proportional to 52,613,160.80, 78,807,766.80 and 43,655,208.80

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Solution

The fourth proportional to 52,613,160.80, 78,807,766.80 and 43,655,208.80 is: 65,389,903.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,613,160.80 : 78,807,766.80 = 43,655,208.80 : x
  2. Step 2: Convert to fraction form
    52,613,160.80/78,807,766.80 = 43,655,208.80/x
  3. Step 3: Cross multiply
    52,613,160.80x = 78,807,766.80 × 43,655,208.80
  4. Step 4: Simplify right side
    52,613,160.80x = 3,440,369,514,715,707.50
  5. Step 5: Solve for x
    x = 3,440,369,514,715,707.50/52,613,160.80
  6. Step 6: Final answer
    x = 65,389,903.64

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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.