Home / 145,509,112.80-218,263,669.20-87,971,767.20

Finding the Fourth Proportional to 145,509,112.80, 218,263,669.20 and 87,971,767.20

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Solution

The fourth proportional to 145,509,112.80, 218,263,669.20 and 87,971,767.20 is: 131,957,650.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,509,112.80 : 218,263,669.20 = 87,971,767.20 : x
  2. Step 2: Convert to fraction form
    145,509,112.80/218,263,669.20 = 87,971,767.20/x
  3. Step 3: Cross multiply
    145,509,112.80x = 218,263,669.20 × 87,971,767.20
  4. Step 4: Simplify right side
    145,509,112.80x = 19,201,040,695,080,208
  5. Step 5: Solve for x
    x = 19,201,040,695,080,208/145,509,112.80
  6. Step 6: Final answer
    x = 131,957,650.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.