Home / 21,021,404,777.95-31,532,188,973.48-5,085,715,677.66

Finding the Fourth Proportional to 21,021,404,777.95, 31,532,188,973.48 and 5,085,715,677.66

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Solution

The fourth proportional to 21,021,404,777.95, 31,532,188,973.48 and 5,085,715,677.66 is: 7,628,593,307.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,021,404,777.95 : 31,532,188,973.48 = 5,085,715,677.66 : x
  2. Step 2: Convert to fraction form
    21,021,404,777.95/31,532,188,973.48 = 5,085,715,677.66/x
  3. Step 3: Cross multiply
    21,021,404,777.95x = 31,532,188,973.48 × 5,085,715,677.66
  4. Step 4: Simplify right side
    21,021,404,777.95x = 160,363,747,813,339,561,984
  5. Step 5: Solve for x
    x = 160,363,747,813,339,561,984/21,021,404,777.95
  6. Step 6: Final answer
    x = 7,628,593,307.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.