Home / 405,985,848.76-560,265,846.06-220,349,089.72

Finding the Fourth Proportional to 405,985,848.76, 560,265,846.06 and 220,349,089.72

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Solution

The fourth proportional to 405,985,848.76, 560,265,846.06 and 220,349,089.72 is: 304,084,660.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,985,848.76 : 560,265,846.06 = 220,349,089.72 : x
  2. Step 2: Convert to fraction form
    405,985,848.76/560,265,846.06 = 220,349,089.72/x
  3. Step 3: Cross multiply
    405,985,848.76x = 560,265,846.06 × 220,349,089.72
  4. Step 4: Simplify right side
    405,985,848.76x = 123,454,069,180,526,640
  5. Step 5: Solve for x
    x = 123,454,069,180,526,640/405,985,848.76
  6. Step 6: Final answer
    x = 304,084,660.97

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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.