Home / 118,302,520.80-177,155,182.80-77,693,138.40

Finding the Fourth Proportional to 118,302,520.80, 177,155,182.80 and 77,693,138.40

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Solution

The fourth proportional to 118,302,520.80, 177,155,182.80 and 77,693,138.40 is: 116,343,608.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,302,520.80 : 177,155,182.80 = 77,693,138.40 : x
  2. Step 2: Convert to fraction form
    118,302,520.80/177,155,182.80 = 77,693,138.40/x
  3. Step 3: Cross multiply
    118,302,520.80x = 177,155,182.80 × 77,693,138.40
  4. Step 4: Simplify right side
    118,302,520.80x = 13,763,742,135,557,702
  5. Step 5: Solve for x
    x = 13,763,742,135,557,702/118,302,520.80
  6. Step 6: Final answer
    x = 116,343,608.26

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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.