Home / 57,838,034.21-86,753,995.52-18,971,366.40

Finding the Fourth Proportional to 57,838,034.21, 86,753,995.52 and 18,971,366.40

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Solution

The fourth proportional to 57,838,034.21, 86,753,995.52 and 18,971,366.40 is: 28,456,047.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,838,034.21 : 86,753,995.52 = 18,971,366.40 : x
  2. Step 2: Convert to fraction form
    57,838,034.21/86,753,995.52 = 18,971,366.40/x
  3. Step 3: Cross multiply
    57,838,034.21x = 86,753,995.52 × 18,971,366.40
  4. Step 4: Simplify right side
    57,838,034.21x = 1,645,841,835,579,021.50
  5. Step 5: Solve for x
    x = 1,645,841,835,579,021.50/57,838,034.21
  6. Step 6: Final answer
    x = 28,456,047.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.