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Finding the Fourth Proportional to 402,941,679.60, 604,263,220.20 and 130,321,340.40

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Solution

The fourth proportional to 402,941,679.60, 604,263,220.20 and 130,321,340.40 is: 195,433,723.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,941,679.60 : 604,263,220.20 = 130,321,340.40 : x
  2. Step 2: Convert to fraction form
    402,941,679.60/604,263,220.20 = 130,321,340.40/x
  3. Step 3: Cross multiply
    402,941,679.60x = 604,263,220.20 × 130,321,340.40
  4. Step 4: Simplify right side
    402,941,679.60x = 78,748,392,810,884,368
  5. Step 5: Solve for x
    x = 78,748,392,810,884,368/402,941,679.60
  6. Step 6: Final answer
    x = 195,433,723.53

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