Home / 76,966,725.72-115,435,654.38-38,617,943.16

Finding the Fourth Proportional to 76,966,725.72, 115,435,654.38 and 38,617,943.16

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Solution

The fourth proportional to 76,966,725.72, 115,435,654.38 and 38,617,943.16 is: 57,919,672.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,966,725.72 : 115,435,654.38 = 38,617,943.16 : x
  2. Step 2: Convert to fraction form
    76,966,725.72/115,435,654.38 = 38,617,943.16/x
  3. Step 3: Cross multiply
    76,966,725.72x = 115,435,654.38 × 38,617,943.16
  4. Step 4: Simplify right side
    76,966,725.72x = 4,457,887,539,484,244.50
  5. Step 5: Solve for x
    x = 4,457,887,539,484,244.50/76,966,725.72
  6. Step 6: Final answer
    x = 57,919,672.40

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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.