Home / 7,128,867.61-10,693,929.80-2,011,342.33

Finding the Fourth Proportional to 7,128,867.61, 10,693,929.80 and 2,011,342.33

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Solution

The fourth proportional to 7,128,867.61, 10,693,929.80 and 2,011,342.33 is: 3,017,190.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,128,867.61 : 10,693,929.80 = 2,011,342.33 : x
  2. Step 2: Convert to fraction form
    7,128,867.61/10,693,929.80 = 2,011,342.33/x
  3. Step 3: Cross multiply
    7,128,867.61x = 10,693,929.80 × 2,011,342.33
  4. Step 4: Simplify right side
    7,128,867.61x = 21,509,153,670,731.72
  5. Step 5: Solve for x
    x = 21,509,153,670,731.72/7,128,867.61
  6. Step 6: Final answer
    x = 3,017,190.79

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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.