Home / 139,112,644.20-208,668,966.30-36,887,015.40

Finding the Fourth Proportional to 139,112,644.20, 208,668,966.30 and 36,887,015.40

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Solution

The fourth proportional to 139,112,644.20, 208,668,966.30 and 36,887,015.40 is: 55,330,523.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,112,644.20 : 208,668,966.30 = 36,887,015.40 : x
  2. Step 2: Convert to fraction form
    139,112,644.20/208,668,966.30 = 36,887,015.40/x
  3. Step 3: Cross multiply
    139,112,644.20x = 208,668,966.30 × 36,887,015.40
  4. Step 4: Simplify right side
    139,112,644.20x = 7,697,175,373,410,181
  5. Step 5: Solve for x
    x = 7,697,175,373,410,181/139,112,644.20
  6. Step 6: Final answer
    x = 55,330,523.10

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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.