Home / 478,962,072.40-718,443,108.60-206,864,280.40

Finding the Fourth Proportional to 478,962,072.40, 718,443,108.60 and 206,864,280.40

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Solution

The fourth proportional to 478,962,072.40, 718,443,108.60 and 206,864,280.40 is: 310,296,420.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,962,072.40 : 718,443,108.60 = 206,864,280.40 : x
  2. Step 2: Convert to fraction form
    478,962,072.40/718,443,108.60 = 206,864,280.40/x
  3. Step 3: Cross multiply
    478,962,072.40x = 718,443,108.60 × 206,864,280.40
  4. Step 4: Simplify right side
    478,962,072.40x = 148,620,216,668,878,048
  5. Step 5: Solve for x
    x = 148,620,216,668,878,048/478,962,072.40
  6. Step 6: Final answer
    x = 310,296,420.60

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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.