Home / 129,303,728.20-194,050,070.70-91,039,976.20

Finding the Fourth Proportional to 129,303,728.20, 194,050,070.70 and 91,039,976.20

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Solution

The fourth proportional to 129,303,728.20, 194,050,070.70 and 91,039,976.20 is: 136,626,484.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,303,728.20 : 194,050,070.70 = 91,039,976.20 : x
  2. Step 2: Convert to fraction form
    129,303,728.20/194,050,070.70 = 91,039,976.20/x
  3. Step 3: Cross multiply
    129,303,728.20x = 194,050,070.70 × 91,039,976.20
  4. Step 4: Simplify right side
    129,303,728.20x = 17,666,313,818,136,316
  5. Step 5: Solve for x
    x = 17,666,313,818,136,316/129,303,728.20
  6. Step 6: Final answer
    x = 136,626,484.51

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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.