Home / 31,512,852.28-43,523,608.40-21,181,639.24

Finding the Fourth Proportional to 31,512,852.28, 43,523,608.40 and 21,181,639.24

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Solution

The fourth proportional to 31,512,852.28, 43,523,608.40 and 21,181,639.24 is: 29,254,774.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,512,852.28 : 43,523,608.40 = 21,181,639.24 : x
  2. Step 2: Convert to fraction form
    31,512,852.28/43,523,608.40 = 21,181,639.24/x
  3. Step 3: Cross multiply
    31,512,852.28x = 43,523,608.40 × 21,181,639.24
  4. Step 4: Simplify right side
    31,512,852.28x = 921,901,371,551,833.50
  5. Step 5: Solve for x
    x = 921,901,371,551,833.50/31,512,852.28
  6. Step 6: Final answer
    x = 29,254,774.00

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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.