Home / 86,361,386.15-119,178,423.54-47,203,140.21

Finding the Fourth Proportional to 86,361,386.15, 119,178,423.54 and 47,203,140.21

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Solution

The fourth proportional to 86,361,386.15, 119,178,423.54 and 47,203,140.21 is: 65,140,175.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,361,386.15 : 119,178,423.54 = 47,203,140.21 : x
  2. Step 2: Convert to fraction form
    86,361,386.15/119,178,423.54 = 47,203,140.21/x
  3. Step 3: Cross multiply
    86,361,386.15x = 119,178,423.54 × 47,203,140.21
  4. Step 4: Simplify right side
    86,361,386.15x = 5,625,595,836,365,385
  5. Step 5: Solve for x
    x = 5,625,595,836,365,385/86,361,386.15
  6. Step 6: Final answer
    x = 65,140,175.34

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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.