Home / 256,829,436.20-385,244,154.30-164,996,431.40

Finding the Fourth Proportional to 256,829,436.20, 385,244,154.30 and 164,996,431.40

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Solution

The fourth proportional to 256,829,436.20, 385,244,154.30 and 164,996,431.40 is: 247,494,647.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,829,436.20 : 385,244,154.30 = 164,996,431.40 : x
  2. Step 2: Convert to fraction form
    256,829,436.20/385,244,154.30 = 164,996,431.40/x
  3. Step 3: Cross multiply
    256,829,436.20x = 385,244,154.30 × 164,996,431.40
  4. Step 4: Simplify right side
    256,829,436.20x = 63,563,910,677,210,968
  5. Step 5: Solve for x
    x = 63,563,910,677,210,968/256,829,436.20
  6. Step 6: Final answer
    x = 247,494,647.10

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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.