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Finding the Fourth Proportional to 922,752,001.80, 1,384,128,002.70 and 861,837,928.20

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Solution

The fourth proportional to 922,752,001.80, 1,384,128,002.70 and 861,837,928.20 is: 1,292,756,892.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,752,001.80 : 1,384,128,002.70 = 861,837,928.20 : x
  2. Step 2: Convert to fraction form
    922,752,001.80/1,384,128,002.70 = 861,837,928.20/x
  3. Step 3: Cross multiply
    922,752,001.80x = 1,384,128,002.70 × 861,837,928.20
  4. Step 4: Simplify right side
    922,752,001.80x = 1,192,894,010,210,572,032
  5. Step 5: Solve for x
    x = 1,192,894,010,210,572,032/922,752,001.80
  6. Step 6: Final answer
    x = 1,292,756,892.30

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