Home / 141,782,917.80-212,674,376.70-90,722,591.40

Finding the Fourth Proportional to 141,782,917.80, 212,674,376.70 and 90,722,591.40

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Solution

The fourth proportional to 141,782,917.80, 212,674,376.70 and 90,722,591.40 is: 136,083,887.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,782,917.80 : 212,674,376.70 = 90,722,591.40 : x
  2. Step 2: Convert to fraction form
    141,782,917.80/212,674,376.70 = 90,722,591.40/x
  3. Step 3: Cross multiply
    141,782,917.80x = 212,674,376.70 × 90,722,591.40
  4. Step 4: Simplify right side
    141,782,917.80x = 19,294,370,578,603,780
  5. Step 5: Solve for x
    x = 19,294,370,578,603,780/141,782,917.80
  6. Step 6: Final answer
    x = 136,083,887.10

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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.