Home / 86,249,815.90-129,310,912.05-40,758,466.30

Finding the Fourth Proportional to 86,249,815.90, 129,310,912.05 and 40,758,466.30

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Solution

The fourth proportional to 86,249,815.90, 129,310,912.05 and 40,758,466.30 is: 61,107,544.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,249,815.90 : 129,310,912.05 = 40,758,466.30 : x
  2. Step 2: Convert to fraction form
    86,249,815.90/129,310,912.05 = 40,758,466.30/x
  3. Step 3: Cross multiply
    86,249,815.90x = 129,310,912.05 × 40,758,466.30
  4. Step 4: Simplify right side
    86,249,815.90x = 5,270,514,451,012,188
  5. Step 5: Solve for x
    x = 5,270,514,451,012,188/86,249,815.90
  6. Step 6: Final answer
    x = 61,107,544.36

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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.