Home / 158,291,778.03-218,442,674.38-87,731,943.60

Finding the Fourth Proportional to 158,291,778.03, 218,442,674.38 and 87,731,943.60

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Solution

The fourth proportional to 158,291,778.03, 218,442,674.38 and 87,731,943.60 is: 121,070,093.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,291,778.03 : 218,442,674.38 = 87,731,943.60 : x
  2. Step 2: Convert to fraction form
    158,291,778.03/218,442,674.38 = 87,731,943.60/x
  3. Step 3: Cross multiply
    158,291,778.03x = 218,442,674.38 × 87,731,943.60
  4. Step 4: Simplify right side
    158,291,778.03x = 19,164,400,388,075,348
  5. Step 5: Solve for x
    x = 19,164,400,388,075,348/158,291,778.03
  6. Step 6: Final answer
    x = 121,070,093.64

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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.