Home / 86,554,030.80-129,831,046.20-54,305,403.60

Finding the Fourth Proportional to 86,554,030.80, 129,831,046.20 and 54,305,403.60

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Solution

The fourth proportional to 86,554,030.80, 129,831,046.20 and 54,305,403.60 is: 81,458,105.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,554,030.80 : 129,831,046.20 = 54,305,403.60 : x
  2. Step 2: Convert to fraction form
    86,554,030.80/129,831,046.20 = 54,305,403.60/x
  3. Step 3: Cross multiply
    86,554,030.80x = 129,831,046.20 × 54,305,403.60
  4. Step 4: Simplify right side
    86,554,030.80x = 7,050,527,363,701,247
  5. Step 5: Solve for x
    x = 7,050,527,363,701,247/86,554,030.80
  6. Step 6: Final answer
    x = 81,458,105.40

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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.