Home / 442,867,986.10-664,301,979.15-328,076,730.10

Finding the Fourth Proportional to 442,867,986.10, 664,301,979.15 and 328,076,730.10

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Solution

The fourth proportional to 442,867,986.10, 664,301,979.15 and 328,076,730.10 is: 492,115,095.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,867,986.10 : 664,301,979.15 = 328,076,730.10 : x
  2. Step 2: Convert to fraction form
    442,867,986.10/664,301,979.15 = 328,076,730.10/x
  3. Step 3: Cross multiply
    442,867,986.10x = 664,301,979.15 × 328,076,730.10
  4. Step 4: Simplify right side
    442,867,986.10x = 217,942,021,118,490,400
  5. Step 5: Solve for x
    x = 217,942,021,118,490,400/442,867,986.10
  6. Step 6: Final answer
    x = 492,115,095.15

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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.