Home / 319,308,002.40-478,962,003.60-284,870,625.60

Finding the Fourth Proportional to 319,308,002.40, 478,962,003.60 and 284,870,625.60

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Solution

The fourth proportional to 319,308,002.40, 478,962,003.60 and 284,870,625.60 is: 427,305,938.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,308,002.40 : 478,962,003.60 = 284,870,625.60 : x
  2. Step 2: Convert to fraction form
    319,308,002.40/478,962,003.60 = 284,870,625.60/x
  3. Step 3: Cross multiply
    319,308,002.40x = 478,962,003.60 × 284,870,625.60
  4. Step 4: Simplify right side
    319,308,002.40x = 136,442,205,604,161,472
  5. Step 5: Solve for x
    x = 136,442,205,604,161,472/319,308,002.40
  6. Step 6: Final answer
    x = 427,305,938.40

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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.