Home / 290,023,277.08-400,242,682.38-157,857,885.52

Finding the Fourth Proportional to 290,023,277.08, 400,242,682.38 and 157,857,885.52

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Solution

The fourth proportional to 290,023,277.08, 400,242,682.38 and 157,857,885.52 is: 217,849,629.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,023,277.08 : 400,242,682.38 = 157,857,885.52 : x
  2. Step 2: Convert to fraction form
    290,023,277.08/400,242,682.38 = 157,857,885.52/x
  3. Step 3: Cross multiply
    290,023,277.08x = 400,242,682.38 × 157,857,885.52
  4. Step 4: Simplify right side
    290,023,277.08x = 63,181,463,535,359,768
  5. Step 5: Solve for x
    x = 63,181,463,535,359,768/290,023,277.08
  6. Step 6: Final answer
    x = 217,849,629.77

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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.