Home / 141,786,857.80-212,255,133.90-84,249,512.20

Finding the Fourth Proportional to 141,786,857.80, 212,255,133.90 and 84,249,512.20

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Solution

The fourth proportional to 141,786,857.80, 212,255,133.90 and 84,249,512.20 is: 126,121,643.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,786,857.80 : 212,255,133.90 = 84,249,512.20 : x
  2. Step 2: Convert to fraction form
    141,786,857.80/212,255,133.90 = 84,249,512.20/x
  3. Step 3: Cross multiply
    141,786,857.80x = 212,255,133.90 × 84,249,512.20
  4. Step 4: Simplify right side
    141,786,857.80x = 17,882,391,493,020,684
  5. Step 5: Solve for x
    x = 17,882,391,493,020,684/141,786,857.80
  6. Step 6: Final answer
    x = 126,121,643.22

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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.