Home / 98,918,213.31-136,523,480.54-54,879,400.53

Finding the Fourth Proportional to 98,918,213.31, 136,523,480.54 and 54,879,400.53

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Solution

The fourth proportional to 98,918,213.31, 136,523,480.54 and 54,879,400.53 is: 75,742,641.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,918,213.31 : 136,523,480.54 = 54,879,400.53 : x
  2. Step 2: Convert to fraction form
    98,918,213.31/136,523,480.54 = 54,879,400.53/x
  3. Step 3: Cross multiply
    98,918,213.31x = 136,523,480.54 × 54,879,400.53
  4. Step 4: Simplify right side
    98,918,213.31x = 7,492,326,770,029,924
  5. Step 5: Solve for x
    x = 7,492,326,770,029,924/98,918,213.31
  6. Step 6: Final answer
    x = 75,742,641.51

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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.