Home / 21,608,021,857.86-29,818,429,729.11-11,963,181,684.55

Finding the Fourth Proportional to 21,608,021,857.86, 29,818,429,729.11 and 11,963,181,684.55

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Solution

The fourth proportional to 21,608,021,857.86, 29,818,429,729.11 and 11,963,181,684.55 is: 16,508,836,150.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,608,021,857.86 : 29,818,429,729.11 = 11,963,181,684.55 : x
  2. Step 2: Convert to fraction form
    21,608,021,857.86/29,818,429,729.11 = 11,963,181,684.55/x
  3. Step 3: Cross multiply
    21,608,021,857.86x = 29,818,429,729.11 × 11,963,181,684.55
  4. Step 4: Simplify right side
    21,608,021,857.86x = 356,723,292,397,329,973,248
  5. Step 5: Solve for x
    x = 356,723,292,397,329,973,248/21,608,021,857.86
  6. Step 6: Final answer
    x = 16,508,836,150.94

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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.