Home / 21,124,962,596.85-31,687,443,895.28-13,686,489,208.05

Finding the Fourth Proportional to 21,124,962,596.85, 31,687,443,895.28 and 13,686,489,208.05

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Solution

The fourth proportional to 21,124,962,596.85, 31,687,443,895.28 and 13,686,489,208.05 is: 20,529,733,812.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,124,962,596.85 : 31,687,443,895.28 = 13,686,489,208.05 : x
  2. Step 2: Convert to fraction form
    21,124,962,596.85/31,687,443,895.28 = 13,686,489,208.05/x
  3. Step 3: Cross multiply
    21,124,962,596.85x = 31,687,443,895.28 × 13,686,489,208.05
  4. Step 4: Simplify right side
    21,124,962,596.85x = 433,689,858,903,371,153,408
  5. Step 5: Solve for x
    x = 433,689,858,903,371,153,408/21,124,962,596.85
  6. Step 6: Final answer
    x = 20,529,733,812.08

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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.