Home / 838,152,610.92-1,257,423,446.31-285,459,827.63

Finding the Fourth Proportional to 838,152,610.92, 1,257,423,446.31 and 285,459,827.63

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Solution

The fourth proportional to 838,152,610.92, 1,257,423,446.31 and 285,459,827.63 is: 428,255,994.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,152,610.92 : 1,257,423,446.31 = 285,459,827.63 : x
  2. Step 2: Convert to fraction form
    838,152,610.92/1,257,423,446.31 = 285,459,827.63/x
  3. Step 3: Cross multiply
    838,152,610.92x = 1,257,423,446.31 × 285,459,827.63
  4. Step 4: Simplify right side
    838,152,610.92x = 358,943,880,235,286,016
  5. Step 5: Solve for x
    x = 358,943,880,235,286,016/838,152,610.92
  6. Step 6: Final answer
    x = 428,255,994.86

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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.