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Finding the Fourth Proportional to 472,392,562.80, 708,588,844.20 and 429,345,841.80

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Solution

The fourth proportional to 472,392,562.80, 708,588,844.20 and 429,345,841.80 is: 644,018,762.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,392,562.80 : 708,588,844.20 = 429,345,841.80 : x
  2. Step 2: Convert to fraction form
    472,392,562.80/708,588,844.20 = 429,345,841.80/x
  3. Step 3: Cross multiply
    472,392,562.80x = 708,588,844.20 × 429,345,841.80
  4. Step 4: Simplify right side
    472,392,562.80x = 304,229,673,803,138,048
  5. Step 5: Solve for x
    x = 304,229,673,803,138,048/472,392,562.80
  6. Step 6: Final answer
    x = 644,018,762.70

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