Home / 520,072,809.36-717,700,304.19-285,118,425.30

Finding the Fourth Proportional to 520,072,809.36, 717,700,304.19 and 285,118,425.30

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Solution

The fourth proportional to 520,072,809.36, 717,700,304.19 and 285,118,425.30 is: 393,463,332.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,072,809.36 : 717,700,304.19 = 285,118,425.30 : x
  2. Step 2: Convert to fraction form
    520,072,809.36/717,700,304.19 = 285,118,425.30/x
  3. Step 3: Cross multiply
    520,072,809.36x = 717,700,304.19 × 285,118,425.30
  4. Step 4: Simplify right side
    520,072,809.36x = 204,629,580,567,983,808
  5. Step 5: Solve for x
    x = 204,629,580,567,983,808/520,072,809.36
  6. Step 6: Final answer
    x = 393,463,332.22

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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.