Home / 100,039,233.94-138,054,142.87-54,254,145.94

Finding the Fourth Proportional to 100,039,233.94, 138,054,142.87 and 54,254,145.94

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Solution

The fourth proportional to 100,039,233.94, 138,054,142.87 and 54,254,145.94 is: 74,870,721.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,039,233.94 : 138,054,142.87 = 54,254,145.94 : x
  2. Step 2: Convert to fraction form
    100,039,233.94/138,054,142.87 = 54,254,145.94/x
  3. Step 3: Cross multiply
    100,039,233.94x = 138,054,142.87 × 54,254,145.94
  4. Step 4: Simplify right side
    100,039,233.94x = 7,490,009,614,409,820
  5. Step 5: Solve for x
    x = 7,490,009,614,409,820/100,039,233.94
  6. Step 6: Final answer
    x = 74,870,721.41

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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.