Home / 158,238,712.22-218,366,532.60-87,674,064.98

Finding the Fourth Proportional to 158,238,712.22, 218,366,532.60 and 87,674,064.98

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Solution

The fourth proportional to 158,238,712.22, 218,366,532.60 and 87,674,064.98 is: 120,988,608.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,238,712.22 : 218,366,532.60 = 87,674,064.98 : x
  2. Step 2: Convert to fraction form
    158,238,712.22/218,366,532.60 = 87,674,064.98/x
  3. Step 3: Cross multiply
    158,238,712.22x = 218,366,532.60 × 87,674,064.98
  4. Step 4: Simplify right side
    158,238,712.22x = 19,145,081,568,629,688
  5. Step 5: Solve for x
    x = 19,145,081,568,629,688/158,238,712.22
  6. Step 6: Final answer
    x = 120,988,608.29

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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.