Home / 39,643,789,895.16-54,709,557,787.02-21,580,470,996.12

Finding the Fourth Proportional to 39,643,789,895.16, 54,709,557,787.02 and 21,580,470,996.12

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Solution

The fourth proportional to 39,643,789,895.16, 54,709,557,787.02 and 21,580,470,996.12 is: 29,781,663,866.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,643,789,895.16 : 54,709,557,787.02 = 21,580,470,996.12 : x
  2. Step 2: Convert to fraction form
    39,643,789,895.16/54,709,557,787.02 = 21,580,470,996.12/x
  3. Step 3: Cross multiply
    39,643,789,895.16x = 54,709,557,787.02 × 21,580,470,996.12
  4. Step 4: Simplify right side
    39,643,789,895.16x = 1,180,658,025,033,336,094,720
  5. Step 5: Solve for x
    x = 1,180,658,025,033,336,094,720/39,643,789,895.16
  6. Step 6: Final answer
    x = 29,781,663,866.03

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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.