Home / 396,017,156.88-546,459,353.16-219,812,578.96

Finding the Fourth Proportional to 396,017,156.88, 546,459,353.16 and 219,812,578.96

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Solution

The fourth proportional to 396,017,156.88, 546,459,353.16 and 219,812,578.96 is: 303,316,756.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,017,156.88 : 546,459,353.16 = 219,812,578.96 : x
  2. Step 2: Convert to fraction form
    396,017,156.88/546,459,353.16 = 219,812,578.96/x
  3. Step 3: Cross multiply
    396,017,156.88x = 546,459,353.16 × 219,812,578.96
  4. Step 4: Simplify right side
    396,017,156.88x = 120,118,639,714,913,024
  5. Step 5: Solve for x
    x = 120,118,639,714,913,024/396,017,156.88
  6. Step 6: Final answer
    x = 303,316,756.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.