Home / 442,867,977.60-664,301,966.40-328,076,721.60

Finding the Fourth Proportional to 442,867,977.60, 664,301,966.40 and 328,076,721.60

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Solution

The fourth proportional to 442,867,977.60, 664,301,966.40 and 328,076,721.60 is: 492,115,082.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,867,977.60 : 664,301,966.40 = 328,076,721.60 : x
  2. Step 2: Convert to fraction form
    442,867,977.60/664,301,966.40 = 328,076,721.60/x
  3. Step 3: Cross multiply
    442,867,977.60x = 664,301,966.40 × 328,076,721.60
  4. Step 4: Simplify right side
    442,867,977.60x = 217,942,011,288,945,376
  5. Step 5: Solve for x
    x = 217,942,011,288,945,376/442,867,977.60
  6. Step 6: Final answer
    x = 492,115,082.40

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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.