Home / 72,610,944.51-100,203,104.95-40,015,896.51

Finding the Fourth Proportional to 72,610,944.51, 100,203,104.95 and 40,015,896.51

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Solution

The fourth proportional to 72,610,944.51, 100,203,104.95 and 40,015,896.51 is: 55,221,938.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,610,944.51 : 100,203,104.95 = 40,015,896.51 : x
  2. Step 2: Convert to fraction form
    72,610,944.51/100,203,104.95 = 40,015,896.51/x
  3. Step 3: Cross multiply
    72,610,944.51x = 100,203,104.95 × 40,015,896.51
  4. Step 4: Simplify right side
    72,610,944.51x = 4,009,717,077,659,868.50
  5. Step 5: Solve for x
    x = 4,009,717,077,659,868.50/72,610,944.51
  6. Step 6: Final answer
    x = 55,221,938.02

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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.