Home / 312,208,861.20-468,313,291.80-293,076,985.20

Finding the Fourth Proportional to 312,208,861.20, 468,313,291.80 and 293,076,985.20

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Solution

The fourth proportional to 312,208,861.20, 468,313,291.80 and 293,076,985.20 is: 439,615,477.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,208,861.20 : 468,313,291.80 = 293,076,985.20 : x
  2. Step 2: Convert to fraction form
    312,208,861.20/468,313,291.80 = 293,076,985.20/x
  3. Step 3: Cross multiply
    312,208,861.20x = 468,313,291.80 × 293,076,985.20
  4. Step 4: Simplify right side
    312,208,861.20x = 137,251,847,689,831,872
  5. Step 5: Solve for x
    x = 137,251,847,689,831,872/312,208,861.20
  6. Step 6: Final answer
    x = 439,615,477.80

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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.