Home / 291,101,619.29-401,717,187.88-158,942,206.20

Finding the Fourth Proportional to 291,101,619.29, 401,717,187.88 and 158,942,206.20

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Solution

The fourth proportional to 291,101,619.29, 401,717,187.88 and 158,942,206.20 is: 219,338,581.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,101,619.29 : 401,717,187.88 = 158,942,206.20 : x
  2. Step 2: Convert to fraction form
    291,101,619.29/401,717,187.88 = 158,942,206.20/x
  3. Step 3: Cross multiply
    291,101,619.29x = 401,717,187.88 × 158,942,206.20
  4. Step 4: Simplify right side
    291,101,619.29x = 63,849,816,109,709,744
  5. Step 5: Solve for x
    x = 63,849,816,109,709,744/291,101,619.29
  6. Step 6: Final answer
    x = 219,338,581.03

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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.