Home / 279,564,423.09-385,800,072.84-154,113,865.17

Finding the Fourth Proportional to 279,564,423.09, 385,800,072.84 and 154,113,865.17

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Solution

The fourth proportional to 279,564,423.09, 385,800,072.84 and 154,113,865.17 is: 212,677,778.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,564,423.09 : 385,800,072.84 = 154,113,865.17 : x
  2. Step 2: Convert to fraction form
    279,564,423.09/385,800,072.84 = 154,113,865.17/x
  3. Step 3: Cross multiply
    279,564,423.09x = 385,800,072.84 × 154,113,865.17
  4. Step 4: Simplify right side
    279,564,423.09x = 59,457,140,408,239,928
  5. Step 5: Solve for x
    x = 59,457,140,408,239,928/279,564,423.09
  6. Step 6: Final answer
    x = 212,677,778.35

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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.