Home / 421,775,168.40-633,040,666.20-364,332,301.20

Finding the Fourth Proportional to 421,775,168.40, 633,040,666.20 and 364,332,301.20

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Solution

The fourth proportional to 421,775,168.40, 633,040,666.20 and 364,332,301.20 is: 546,824,896.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,775,168.40 : 633,040,666.20 = 364,332,301.20 : x
  2. Step 2: Convert to fraction form
    421,775,168.40/633,040,666.20 = 364,332,301.20/x
  3. Step 3: Cross multiply
    421,775,168.40x = 633,040,666.20 × 364,332,301.20
  4. Step 4: Simplify right side
    421,775,168.40x = 230,637,162,669,827,072
  5. Step 5: Solve for x
    x = 230,637,162,669,827,072/421,775,168.40
  6. Step 6: Final answer
    x = 546,824,896.18

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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.