Home / 405,985,847.76-560,265,844.68-220,349,088.72

Finding the Fourth Proportional to 405,985,847.76, 560,265,844.68 and 220,349,088.72

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Solution

The fourth proportional to 405,985,847.76, 560,265,844.68 and 220,349,088.72 is: 304,084,659.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,985,847.76 : 560,265,844.68 = 220,349,088.72 : x
  2. Step 2: Convert to fraction form
    405,985,847.76/560,265,844.68 = 220,349,088.72/x
  3. Step 3: Cross multiply
    405,985,847.76x = 560,265,844.68 × 220,349,088.72
  4. Step 4: Simplify right side
    405,985,847.76x = 123,454,068,316,179,040
  5. Step 5: Solve for x
    x = 123,454,068,316,179,040/405,985,847.76
  6. Step 6: Final answer
    x = 304,084,659.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.