Home / 72,664,854.51-100,279,920.75-39,626,911.74

Finding the Fourth Proportional to 72,664,854.51, 100,279,920.75 and 39,626,911.74

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Solution

The fourth proportional to 72,664,854.51, 100,279,920.75 and 39,626,911.74 is: 54,686,458.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,664,854.51 : 100,279,920.75 = 39,626,911.74 : x
  2. Step 2: Convert to fraction form
    72,664,854.51/100,279,920.75 = 39,626,911.74/x
  3. Step 3: Cross multiply
    72,664,854.51x = 100,279,920.75 × 39,626,911.74
  4. Step 4: Simplify right side
    72,664,854.51x = 3,973,783,568,854,445
  5. Step 5: Solve for x
    x = 3,973,783,568,854,445/72,664,854.51
  6. Step 6: Final answer
    x = 54,686,458.75

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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.