Home / 86,960,933.20-130,441,399.80-82,709,405.20

Finding the Fourth Proportional to 86,960,933.20, 130,441,399.80 and 82,709,405.20

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Solution

The fourth proportional to 86,960,933.20, 130,441,399.80 and 82,709,405.20 is: 124,064,107.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,960,933.20 : 130,441,399.80 = 82,709,405.20 : x
  2. Step 2: Convert to fraction form
    86,960,933.20/130,441,399.80 = 82,709,405.20/x
  3. Step 3: Cross multiply
    86,960,933.20x = 130,441,399.80 × 82,709,405.20
  4. Step 4: Simplify right side
    86,960,933.20x = 10,788,730,590,913,400
  5. Step 5: Solve for x
    x = 10,788,730,590,913,400/86,960,933.20
  6. Step 6: Final answer
    x = 124,064,107.80

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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.