Home / 639,839,259.60-959,758,889.40-565,862,672.40

Finding the Fourth Proportional to 639,839,259.60, 959,758,889.40 and 565,862,672.40

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Solution

The fourth proportional to 639,839,259.60, 959,758,889.40 and 565,862,672.40 is: 848,794,008.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,839,259.60 : 959,758,889.40 = 565,862,672.40 : x
  2. Step 2: Convert to fraction form
    639,839,259.60/959,758,889.40 = 565,862,672.40/x
  3. Step 3: Cross multiply
    639,839,259.60x = 959,758,889.40 × 565,862,672.40
  4. Step 4: Simplify right side
    639,839,259.60x = 543,091,730,015,539,968
  5. Step 5: Solve for x
    x = 543,091,730,015,539,968/639,839,259.60
  6. Step 6: Final answer
    x = 848,794,008.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.