Home / 304,519,365.51-420,225,850.47-172,357,523.70

Finding the Fourth Proportional to 304,519,365.51, 420,225,850.47 and 172,357,523.70

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Solution

The fourth proportional to 304,519,365.51, 420,225,850.47 and 172,357,523.70 is: 237,847,228.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,519,365.51 : 420,225,850.47 = 172,357,523.70 : x
  2. Step 2: Convert to fraction form
    304,519,365.51/420,225,850.47 = 172,357,523.70/x
  3. Step 3: Cross multiply
    304,519,365.51x = 420,225,850.47 × 172,357,523.70
  4. Step 4: Simplify right side
    304,519,365.51x = 72,429,086,981,735,680
  5. Step 5: Solve for x
    x = 72,429,086,981,735,680/304,519,365.51
  6. Step 6: Final answer
    x = 237,847,228.08

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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.