Home / 86,015,953.90-118,701,964.04-47,384,785.90

Finding the Fourth Proportional to 86,015,953.90, 118,701,964.04 and 47,384,785.90

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Solution

The fourth proportional to 86,015,953.90, 118,701,964.04 and 47,384,785.90 is: 65,390,975.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,015,953.90 : 118,701,964.04 = 47,384,785.90 : x
  2. Step 2: Convert to fraction form
    86,015,953.90/118,701,964.04 = 47,384,785.90/x
  3. Step 3: Cross multiply
    86,015,953.90x = 118,701,964.04 × 47,384,785.90
  4. Step 4: Simplify right side
    86,015,953.90x = 5,624,667,151,944,899
  5. Step 5: Solve for x
    x = 5,624,667,151,944,899/86,015,953.90
  6. Step 6: Final answer
    x = 65,390,975.71

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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.