Home / 13,438,311.88-18,546,444.79-7,637,965.52

Finding the Fourth Proportional to 13,438,311.88, 18,546,444.79 and 7,637,965.52

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Solution

The fourth proportional to 13,438,311.88, 18,546,444.79 and 7,637,965.52 is: 10,541,287.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,438,311.88 : 18,546,444.79 = 7,637,965.52 : x
  2. Step 2: Convert to fraction form
    13,438,311.88/18,546,444.79 = 7,637,965.52/x
  3. Step 3: Cross multiply
    13,438,311.88x = 18,546,444.79 × 7,637,965.52
  4. Step 4: Simplify right side
    13,438,311.88x = 141,657,105,712,776.50
  5. Step 5: Solve for x
    x = 141,657,105,712,776.50/13,438,311.88
  6. Step 6: Final answer
    x = 10,541,287.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.