Home / 30,587,239.14-42,181,049.09-20,551,433.13

Finding the Fourth Proportional to 30,587,239.14, 42,181,049.09 and 20,551,433.13

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Solution

The fourth proportional to 30,587,239.14, 42,181,049.09 and 20,551,433.13 is: 28,341,263.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,587,239.14 : 42,181,049.09 = 20,551,433.13 : x
  2. Step 2: Convert to fraction form
    30,587,239.14/42,181,049.09 = 20,551,433.13/x
  3. Step 3: Cross multiply
    30,587,239.14x = 42,181,049.09 × 20,551,433.13
  4. Step 4: Simplify right side
    30,587,239.14x = 866,881,009,777,760.88
  5. Step 5: Solve for x
    x = 866,881,009,777,760.88/30,587,239.14
  6. Step 6: Final answer
    x = 28,341,263.69

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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.