Home / 405,981,459.84-560,254,968.96-220,342,478.08

Finding the Fourth Proportional to 405,981,459.84, 560,254,968.96 and 220,342,478.08

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Solution

The fourth proportional to 405,981,459.84, 560,254,968.96 and 220,342,478.08 is: 304,072,920.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,981,459.84 : 560,254,968.96 = 220,342,478.08 : x
  2. Step 2: Convert to fraction form
    405,981,459.84/560,254,968.96 = 220,342,478.08/x
  3. Step 3: Cross multiply
    405,981,459.84x = 560,254,968.96 × 220,342,478.08
  4. Step 4: Simplify right side
    405,981,459.84x = 123,447,968,217,279,904
  5. Step 5: Solve for x
    x = 123,447,968,217,279,904/405,981,459.84
  6. Step 6: Final answer
    x = 304,072,920.64

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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.