Home / 17,780,643.30-26,683,406.55-7,690,505.70

Finding the Fourth Proportional to 17,780,643.30, 26,683,406.55 and 7,690,505.70

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Solution

The fourth proportional to 17,780,643.30, 26,683,406.55 and 7,690,505.70 is: 11,541,139.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,780,643.30 : 26,683,406.55 = 7,690,505.70 : x
  2. Step 2: Convert to fraction form
    17,780,643.30/26,683,406.55 = 7,690,505.70/x
  3. Step 3: Cross multiply
    17,780,643.30x = 26,683,406.55 × 7,690,505.70
  4. Step 4: Simplify right side
    17,780,643.30x = 205,208,890,168,192.34
  5. Step 5: Solve for x
    x = 205,208,890,168,192.34/17,780,643.30
  6. Step 6: Final answer
    x = 11,541,139.81

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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.