Home / 291,252,816.96-401,928,871.95-157,290,721.94

Finding the Fourth Proportional to 291,252,816.96, 401,928,871.95 and 157,290,721.94

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Solution

The fourth proportional to 291,252,816.96, 401,928,871.95 and 157,290,721.94 is: 217,061,187.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,252,816.96 : 401,928,871.95 = 157,290,721.94 : x
  2. Step 2: Convert to fraction form
    291,252,816.96/401,928,871.95 = 157,290,721.94/x
  3. Step 3: Cross multiply
    291,252,816.96x = 401,928,871.95 × 157,290,721.94
  4. Step 4: Simplify right side
    291,252,816.96x = 63,219,682,435,535,672
  5. Step 5: Solve for x
    x = 63,219,682,435,535,672/291,252,816.96
  6. Step 6: Final answer
    x = 217,061,187.92

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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.