Home / 72,322,917.81-99,806,435.36-42,560,145.84

Finding the Fourth Proportional to 72,322,917.81, 99,806,435.36 and 42,560,145.84

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Solution

The fourth proportional to 72,322,917.81, 99,806,435.36 and 42,560,145.84 is: 58,733,477.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,322,917.81 : 99,806,435.36 = 42,560,145.84 : x
  2. Step 2: Convert to fraction form
    72,322,917.81/99,806,435.36 = 42,560,145.84/x
  3. Step 3: Cross multiply
    72,322,917.81x = 99,806,435.36 × 42,560,145.84
  4. Step 4: Simplify right side
    72,322,917.81x = 4,247,776,445,013,207
  5. Step 5: Solve for x
    x = 4,247,776,445,013,207/72,322,917.81
  6. Step 6: Final answer
    x = 58,733,477.21

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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.