Home / 141,767,999.80-212,651,999.70-77,270,745.40

Finding the Fourth Proportional to 141,767,999.80, 212,651,999.70 and 77,270,745.40

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Solution

The fourth proportional to 141,767,999.80, 212,651,999.70 and 77,270,745.40 is: 115,906,118.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,767,999.80 : 212,651,999.70 = 77,270,745.40 : x
  2. Step 2: Convert to fraction form
    141,767,999.80/212,651,999.70 = 77,270,745.40/x
  3. Step 3: Cross multiply
    141,767,999.80x = 212,651,999.70 × 77,270,745.40
  4. Step 4: Simplify right side
    141,767,999.80x = 16,431,778,527,619,576
  5. Step 5: Solve for x
    x = 16,431,778,527,619,576/141,767,999.80
  6. Step 6: Final answer
    x = 115,906,118.10

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1.5x scale

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.