Home / 78,718,242.51-108,670,502.73-48,958,483.61

Finding the Fourth Proportional to 78,718,242.51, 108,670,502.73 and 48,958,483.61

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Solution

The fourth proportional to 78,718,242.51, 108,670,502.73 and 48,958,483.61 is: 67,587,167.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,718,242.51 : 108,670,502.73 = 48,958,483.61 : x
  2. Step 2: Convert to fraction form
    78,718,242.51/108,670,502.73 = 48,958,483.61/x
  3. Step 3: Cross multiply
    78,718,242.51x = 108,670,502.73 × 48,958,483.61
  4. Step 4: Simplify right side
    78,718,242.51x = 5,320,343,026,253,813
  5. Step 5: Solve for x
    x = 5,320,343,026,253,813/78,718,242.51
  6. Step 6: Final answer
    x = 67,587,167.30

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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.