Home / 100,039,239.19-138,054,150.11-54,254,151.19

Finding the Fourth Proportional to 100,039,239.19, 138,054,150.11 and 54,254,151.19

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Solution

The fourth proportional to 100,039,239.19, 138,054,150.11 and 54,254,151.19 is: 74,870,728.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,039,239.19 : 138,054,150.11 = 54,254,151.19 : x
  2. Step 2: Convert to fraction form
    100,039,239.19/138,054,150.11 = 54,254,151.19/x
  3. Step 3: Cross multiply
    100,039,239.19x = 138,054,150.11 × 54,254,151.19
  4. Step 4: Simplify right side
    100,039,239.19x = 7,490,010,732,474,896
  5. Step 5: Solve for x
    x = 7,490,010,732,474,896/100,039,239.19
  6. Step 6: Final answer
    x = 74,870,728.66

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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.