Home / 20,513,036,082.68-28,308,874,514.66-11,357,564,842.79

Finding the Fourth Proportional to 20,513,036,082.68, 28,308,874,514.66 and 11,357,564,842.79

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Solution

The fourth proportional to 20,513,036,082.68, 28,308,874,514.66 and 11,357,564,842.79 is: 15,673,929,331.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,513,036,082.68 : 28,308,874,514.66 = 11,357,564,842.79 : x
  2. Step 2: Convert to fraction form
    20,513,036,082.68/28,308,874,514.66 = 11,357,564,842.79/x
  3. Step 3: Cross multiply
    20,513,036,082.68x = 28,308,874,514.66 × 11,357,564,842.79
  4. Step 4: Simplify right side
    20,513,036,082.68x = 321,519,877,926,746,783,744
  5. Step 5: Solve for x
    x = 321,519,877,926,746,783,744/20,513,036,082.68
  6. Step 6: Final answer
    x = 15,673,929,331.13

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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.