Home / 252,384,331.20-378,576,496.80-99,035,390.40

Finding the Fourth Proportional to 252,384,331.20, 378,576,496.80 and 99,035,390.40

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Solution

The fourth proportional to 252,384,331.20, 378,576,496.80 and 99,035,390.40 is: 148,553,085.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,384,331.20 : 378,576,496.80 = 99,035,390.40 : x
  2. Step 2: Convert to fraction form
    252,384,331.20/378,576,496.80 = 99,035,390.40/x
  3. Step 3: Cross multiply
    252,384,331.20x = 378,576,496.80 × 99,035,390.40
  4. Step 4: Simplify right side
    252,384,331.20x = 37,492,471,156,852,352
  5. Step 5: Solve for x
    x = 37,492,471,156,852,352/252,384,331.20
  6. Step 6: Final answer
    x = 148,553,085.60

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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.