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Finding the Fourth Proportional to 426,249,185.40, 639,373,802.40 and 103,133,057.40

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Solution

The fourth proportional to 426,249,185.40, 639,373,802.40 and 103,133,057.40 is: 154,699,591.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,249,185.40 : 639,373,802.40 = 103,133,057.40 : x
  2. Step 2: Convert to fraction form
    426,249,185.40/639,373,802.40 = 103,133,057.40/x
  3. Step 3: Cross multiply
    426,249,185.40x = 639,373,802.40 × 103,133,057.40
  4. Step 4: Simplify right side
    426,249,185.40x = 65,940,575,062,975,456
  5. Step 5: Solve for x
    x = 65,940,575,062,975,456/426,249,185.40
  6. Step 6: Final answer
    x = 154,699,591.98

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