Home / 9,987,278,358.15-13,782,334,295.79-5,409,428,887.62

Finding the Fourth Proportional to 9,987,278,358.15, 13,782,334,295.79 and 5,409,428,887.62

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Solution

The fourth proportional to 9,987,278,358.15, 13,782,334,295.79 and 5,409,428,887.62 is: 7,464,952,372.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,987,278,358.15 : 13,782,334,295.79 = 5,409,428,887.62 : x
  2. Step 2: Convert to fraction form
    9,987,278,358.15/13,782,334,295.79 = 5,409,428,887.62/x
  3. Step 3: Cross multiply
    9,987,278,358.15x = 13,782,334,295.79 × 5,409,428,887.62
  4. Step 4: Simplify right side
    9,987,278,358.15x = 74,554,557,278,482,284,544
  5. Step 5: Solve for x
    x = 74,554,557,278,482,284,544/9,987,278,358.15
  6. Step 6: Final answer
    x = 7,464,952,372.90

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1.5x scale

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.