Home / 57,033,818.18-78,706,689.97-30,928,329.06

Finding the Fourth Proportional to 57,033,818.18, 78,706,689.97 and 30,928,329.06

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Solution

The fourth proportional to 57,033,818.18, 78,706,689.97 and 30,928,329.06 is: 42,681,105.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,033,818.18 : 78,706,689.97 = 30,928,329.06 : x
  2. Step 2: Convert to fraction form
    57,033,818.18/78,706,689.97 = 30,928,329.06/x
  3. Step 3: Cross multiply
    57,033,818.18x = 78,706,689.97 × 30,928,329.06
  4. Step 4: Simplify right side
    57,033,818.18x = 2,434,266,406,615,561.50
  5. Step 5: Solve for x
    x = 2,434,266,406,615,561.50/57,033,818.18
  6. Step 6: Final answer
    x = 42,681,105.43

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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.