Home / 405,981,461.84-560,254,971.72-220,342,480.08

Finding the Fourth Proportional to 405,981,461.84, 560,254,971.72 and 220,342,480.08

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Solution

The fourth proportional to 405,981,461.84, 560,254,971.72 and 220,342,480.08 is: 304,072,923.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,981,461.84 : 560,254,971.72 = 220,342,480.08 : x
  2. Step 2: Convert to fraction form
    405,981,461.84/560,254,971.72 = 220,342,480.08/x
  3. Step 3: Cross multiply
    405,981,461.84x = 560,254,971.72 × 220,342,480.08
  4. Step 4: Simplify right side
    405,981,461.84x = 123,447,969,945,935,072
  5. Step 5: Solve for x
    x = 123,447,969,945,935,072/405,981,461.84
  6. Step 6: Final answer
    x = 304,072,923.40

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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.