Home / 21,889,689,155.28-30,206,961,755.64-11,864,968,768.80

Finding the Fourth Proportional to 21,889,689,155.28, 30,206,961,755.64 and 11,864,968,768.80

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Solution

The fourth proportional to 21,889,689,155.28, 30,206,961,755.64 and 11,864,968,768.80 is: 16,373,218,243.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,889,689,155.28 : 30,206,961,755.64 = 11,864,968,768.80 : x
  2. Step 2: Convert to fraction form
    21,889,689,155.28/30,206,961,755.64 = 11,864,968,768.80/x
  3. Step 3: Cross multiply
    21,889,689,155.28x = 30,206,961,755.64 × 11,864,968,768.80
  4. Step 4: Simplify right side
    21,889,689,155.28x = 358,404,657,831,004,602,368
  5. Step 5: Solve for x
    x = 358,404,657,831,004,602,368/21,889,689,155.28
  6. Step 6: Final answer
    x = 16,373,218,243.92

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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.