Home / 86,619,684.40-129,945,913.40-34,808,320.32

Finding the Fourth Proportional to 86,619,684.40, 129,945,913.40 and 34,808,320.32

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Solution

The fourth proportional to 86,619,684.40, 129,945,913.40 and 34,808,320.32 is: 52,219,065.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,619,684.40 : 129,945,913.40 = 34,808,320.32 : x
  2. Step 2: Convert to fraction form
    86,619,684.40/129,945,913.40 = 34,808,320.32/x
  3. Step 3: Cross multiply
    86,619,684.40x = 129,945,913.40 × 34,808,320.32
  4. Step 4: Simplify right side
    86,619,684.40x = 4,523,198,977,902,181
  5. Step 5: Solve for x
    x = 4,523,198,977,902,181/86,619,684.40
  6. Step 6: Final answer
    x = 52,219,065.55

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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.