Home / 456,778,389.81-685,194,000.03-129,226,464.48

Finding the Fourth Proportional to 456,778,389.81, 685,194,000.03 and 129,226,464.48

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Solution

The fourth proportional to 456,778,389.81, 685,194,000.03 and 129,226,464.48 is: 193,847,169.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,778,389.81 : 685,194,000.03 = 129,226,464.48 : x
  2. Step 2: Convert to fraction form
    456,778,389.81/685,194,000.03 = 129,226,464.48/x
  3. Step 3: Cross multiply
    456,778,389.81x = 685,194,000.03 × 129,226,464.48
  4. Step 4: Simplify right side
    456,778,389.81x = 88,545,198,106,785,920
  5. Step 5: Solve for x
    x = 88,545,198,106,785,920/456,778,389.81
  6. Step 6: Final answer
    x = 193,847,169.84

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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.