Home / 78,820,394.38-108,769,962.54-43,537,567.12

Finding the Fourth Proportional to 78,820,394.38, 108,769,962.54 and 43,537,567.12

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Solution

The fourth proportional to 78,820,394.38, 108,769,962.54 and 43,537,567.12 is: 60,080,637.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,820,394.38 : 108,769,962.54 = 43,537,567.12 : x
  2. Step 2: Convert to fraction form
    78,820,394.38/108,769,962.54 = 43,537,567.12/x
  3. Step 3: Cross multiply
    78,820,394.38x = 108,769,962.54 × 43,537,567.12
  4. Step 4: Simplify right side
    78,820,394.38x = 4,735,579,544,725,136
  5. Step 5: Solve for x
    x = 4,735,579,544,725,136/78,820,394.38
  6. Step 6: Final answer
    x = 60,080,637.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.