Home / 138,170,621.39-190,676,379.33-75,447,154.87

Finding the Fourth Proportional to 138,170,621.39, 190,676,379.33 and 75,447,154.87

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Solution

The fourth proportional to 138,170,621.39, 190,676,379.33 and 75,447,154.87 is: 104,117,577.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,170,621.39 : 190,676,379.33 = 75,447,154.87 : x
  2. Step 2: Convert to fraction form
    138,170,621.39/190,676,379.33 = 75,447,154.87/x
  3. Step 3: Cross multiply
    138,170,621.39x = 190,676,379.33 × 75,447,154.87
  4. Step 4: Simplify right side
    138,170,621.39x = 14,385,990,320,407,994
  5. Step 5: Solve for x
    x = 14,385,990,320,407,994/138,170,621.39
  6. Step 6: Final answer
    x = 104,117,577.07

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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.