Home / 280,182,809.78-420,231,113.52-93,440,033.58

Finding the Fourth Proportional to 280,182,809.78, 420,231,113.52 and 93,440,033.58

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Solution

The fourth proportional to 280,182,809.78, 420,231,113.52 and 93,440,033.58 is: 140,145,676.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,182,809.78 : 420,231,113.52 = 93,440,033.58 : x
  2. Step 2: Convert to fraction form
    280,182,809.78/420,231,113.52 = 93,440,033.58/x
  3. Step 3: Cross multiply
    280,182,809.78x = 420,231,113.52 × 93,440,033.58
  4. Step 4: Simplify right side
    280,182,809.78x = 39,266,409,358,669,592
  5. Step 5: Solve for x
    x = 39,266,409,358,669,592/280,182,809.78
  6. Step 6: Final answer
    x = 140,145,676.28

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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.