Home / 28,231,238.40-38,966,217.60-16,015,430.40

Finding the Fourth Proportional to 28,231,238.40, 38,966,217.60 and 16,015,430.40

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Solution

The fourth proportional to 28,231,238.40, 38,966,217.60 and 16,015,430.40 is: 22,105,326.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,231,238.40 : 38,966,217.60 = 16,015,430.40 : x
  2. Step 2: Convert to fraction form
    28,231,238.40/38,966,217.60 = 16,015,430.40/x
  3. Step 3: Cross multiply
    28,231,238.40x = 38,966,217.60 × 16,015,430.40
  4. Step 4: Simplify right side
    28,231,238.40x = 624,060,745,924,055.12
  5. Step 5: Solve for x
    x = 624,060,745,924,055.12/28,231,238.40
  6. Step 6: Final answer
    x = 22,105,326.63

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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.