Home / 3,953,640,103.71-5,456,008,370.43-2,169,523,407.21

Finding the Fourth Proportional to 3,953,640,103.71, 5,456,008,370.43 and 2,169,523,407.21

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Solution

The fourth proportional to 3,953,640,103.71, 5,456,008,370.43 and 2,169,523,407.21 is: 2,993,934,085.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,953,640,103.71 : 5,456,008,370.43 = 2,169,523,407.21 : x
  2. Step 2: Convert to fraction form
    3,953,640,103.71/5,456,008,370.43 = 2,169,523,407.21/x
  3. Step 3: Cross multiply
    3,953,640,103.71x = 5,456,008,370.43 × 2,169,523,407.21
  4. Step 4: Simplify right side
    3,953,640,103.71x = 11,836,937,869,581,574,144
  5. Step 5: Solve for x
    x = 11,836,937,869,581,574,144/3,953,640,103.71
  6. Step 6: Final answer
    x = 2,993,934,085.82

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1.5x scale

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.