Home / 21,320,052,485,056-29,421,672,429,375-12,195,525,128,124

Finding the Fourth Proportional to 21,320,052,485,056, 29,421,672,429,375 and 12,195,525,128,124

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Solution

The fourth proportional to 21,320,052,485,056, 29,421,672,429,375 and 12,195,525,128,124 is: 16,829,824,676,809.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,320,052,485,056 : 29,421,672,429,375 = 12,195,525,128,124 : x
  2. Step 2: Convert to fraction form
    21,320,052,485,056/29,421,672,429,375 = 12,195,525,128,124/x
  3. Step 3: Cross multiply
    21,320,052,485,056x = 29,421,672,429,375 × 12,195,525,128,124
  4. Step 4: Simplify right side
    21,320,052,485,056x = 358,812,745,423,875,891,211,010,048
  5. Step 5: Solve for x
    x = 358,812,745,423,875,891,211,010,048/21,320,052,485,056
  6. Step 6: Final answer
    x = 16,829,824,676,809.81

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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.