Home / 129,373,547.80-194,060,321.70-109,890,002.20

Finding the Fourth Proportional to 129,373,547.80, 194,060,321.70 and 109,890,002.20

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Solution

The fourth proportional to 129,373,547.80, 194,060,321.70 and 109,890,002.20 is: 164,835,003.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,373,547.80 : 194,060,321.70 = 109,890,002.20 : x
  2. Step 2: Convert to fraction form
    129,373,547.80/194,060,321.70 = 109,890,002.20/x
  3. Step 3: Cross multiply
    129,373,547.80x = 194,060,321.70 × 109,890,002.20
  4. Step 4: Simplify right side
    129,373,547.80x = 21,325,289,178,545,708
  5. Step 5: Solve for x
    x = 21,325,289,178,545,708/129,373,547.80
  6. Step 6: Final answer
    x = 164,835,003.30

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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.