Home / 20,727,428,367,412-28,604,750,287,940-11,478,412,667,851

Finding the Fourth Proportional to 20,727,428,367,412, 28,604,750,287,940 and 11,478,412,667,851

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Solution

The fourth proportional to 20,727,428,367,412, 28,604,750,287,940 and 11,478,412,667,851 is: 15,840,707,406,907.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,727,428,367,412 : 28,604,750,287,940 = 11,478,412,667,851 : x
  2. Step 2: Convert to fraction form
    20,727,428,367,412/28,604,750,287,940 = 11,478,412,667,851/x
  3. Step 3: Cross multiply
    20,727,428,367,412x = 28,604,750,287,940 × 11,478,412,667,851
  4. Step 4: Simplify right side
    20,727,428,367,412x = 328,337,128,065,805,066,369,499,136
  5. Step 5: Solve for x
    x = 328,337,128,065,805,066,369,499,136/20,727,428,367,412
  6. Step 6: Final answer
    x = 15,840,707,406,907.36

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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.