Home / 20,727,428,370,939-28,604,750,292,802-11,478,412,671,375

Finding the Fourth Proportional to 20,727,428,370,939, 28,604,750,292,802 and 11,478,412,671,375

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Solution

The fourth proportional to 20,727,428,370,939, 28,604,750,292,802 and 11,478,412,671,375 is: 15,840,707,411,767.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,727,428,370,939 : 28,604,750,292,802 = 11,478,412,671,375 : x
  2. Step 2: Convert to fraction form
    20,727,428,370,939/28,604,750,292,802 = 11,478,412,671,375/x
  3. Step 3: Cross multiply
    20,727,428,370,939x = 28,604,750,292,802 × 11,478,412,671,375
  4. Step 4: Simplify right side
    20,727,428,370,939x = 328,337,128,222,416,204,095,029,248
  5. Step 5: Solve for x
    x = 328,337,128,222,416,204,095,029,248/20,727,428,370,939
  6. Step 6: Final answer
    x = 15,840,707,411,767.64

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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.