Home / 86,302,256.40-129,366,293.40-43,105,021.20

Finding the Fourth Proportional to 86,302,256.40, 129,366,293.40 and 43,105,021.20

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Solution

The fourth proportional to 86,302,256.40, 129,366,293.40 and 43,105,021.20 is: 64,614,032.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,302,256.40 : 129,366,293.40 = 43,105,021.20 : x
  2. Step 2: Convert to fraction form
    86,302,256.40/129,366,293.40 = 43,105,021.20/x
  3. Step 3: Cross multiply
    86,302,256.40x = 129,366,293.40 × 43,105,021.20
  4. Step 4: Simplify right side
    86,302,256.40x = 5,576,336,819,572,421
  5. Step 5: Solve for x
    x = 5,576,336,819,572,421/86,302,256.40
  6. Step 6: Final answer
    x = 64,614,032.73

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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.