Home / 8,690,585.51-11,987,552.80-5,155,879.61

Finding the Fourth Proportional to 8,690,585.51, 11,987,552.80 and 5,155,879.61

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Solution

The fourth proportional to 8,690,585.51, 11,987,552.80 and 5,155,879.61 is: 7,111,877.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,690,585.51 : 11,987,552.80 = 5,155,879.61 : x
  2. Step 2: Convert to fraction form
    8,690,585.51/11,987,552.80 = 5,155,879.61/x
  3. Step 3: Cross multiply
    8,690,585.51x = 11,987,552.80 × 5,155,879.61
  4. Step 4: Simplify right side
    8,690,585.51x = 61,806,379,072,397.59
  5. Step 5: Solve for x
    x = 61,806,379,072,397.59/8,690,585.51
  6. Step 6: Final answer
    x = 7,111,877.45

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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.