Home / 100,039,216.13-138,054,118.25-54,254,128.13

Finding the Fourth Proportional to 100,039,216.13, 138,054,118.25 and 54,254,128.13

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Solution

The fourth proportional to 100,039,216.13, 138,054,118.25 and 54,254,128.13 is: 74,870,696.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,039,216.13 : 138,054,118.25 = 54,254,128.13 : x
  2. Step 2: Convert to fraction form
    100,039,216.13/138,054,118.25 = 54,254,128.13/x
  3. Step 3: Cross multiply
    100,039,216.13x = 138,054,118.25 × 54,254,128.13
  4. Step 4: Simplify right side
    100,039,216.13x = 7,490,005,819,855,036
  5. Step 5: Solve for x
    x = 7,490,005,819,855,036/100,039,216.13
  6. Step 6: Final answer
    x = 74,870,696.81

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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.