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Finding the Fourth Proportional to 402,103,978.04, 554,870,790.06 and 225,882,399.80

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Solution

The fourth proportional to 402,103,978.04, 554,870,790.06 and 225,882,399.80 is: 311,699,342.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,103,978.04 : 554,870,790.06 = 225,882,399.80 : x
  2. Step 2: Convert to fraction form
    402,103,978.04/554,870,790.06 = 225,882,399.80/x
  3. Step 3: Cross multiply
    402,103,978.04x = 554,870,790.06 × 225,882,399.80
  4. Step 4: Simplify right side
    402,103,978.04x = 125,335,545,637,674,784
  5. Step 5: Solve for x
    x = 125,335,545,637,674,784/402,103,978.04
  6. Step 6: Final answer
    x = 311,699,342.66

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Why These Related Problems?

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