Home / 9,679,121-13,357,186.98-5,387,782.76

Finding the Fourth Proportional to 9,679,121, 13,357,186.98 and 5,387,782.76

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Solution

The fourth proportional to 9,679,121, 13,357,186.98 and 5,387,782.76 is: 7,435,140.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,679,121 : 13,357,186.98 = 5,387,782.76 : x
  2. Step 2: Convert to fraction form
    9,679,121/13,357,186.98 = 5,387,782.76/x
  3. Step 3: Cross multiply
    9,679,121x = 13,357,186.98 × 5,387,782.76
  4. Step 4: Simplify right side
    9,679,121x = 71,965,621,732,940.47
  5. Step 5: Solve for x
    x = 71,965,621,732,940.47/9,679,121
  6. Step 6: Final answer
    x = 7,435,140.21

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Double scale
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Similar ratio
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1.5x scale

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.