Home / 155,435,512.80-233,302,568.40-78,845,023.20

Finding the Fourth Proportional to 155,435,512.80, 233,302,568.40 and 78,845,023.20

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Solution

The fourth proportional to 155,435,512.80, 233,302,568.40 and 78,845,023.20 is: 118,343,267.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,435,512.80 : 233,302,568.40 = 78,845,023.20 : x
  2. Step 2: Convert to fraction form
    155,435,512.80/233,302,568.40 = 78,845,023.20/x
  3. Step 3: Cross multiply
    155,435,512.80x = 233,302,568.40 × 78,845,023.20
  4. Step 4: Simplify right side
    155,435,512.80x = 18,394,746,418,117,588
  5. Step 5: Solve for x
    x = 18,394,746,418,117,588/155,435,512.80
  6. Step 6: Final answer
    x = 118,343,267.16

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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.