Home / 646,827,787.60-970,241,681.40-186,780,965.20

Finding the Fourth Proportional to 646,827,787.60, 970,241,681.40 and 186,780,965.20

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Solution

The fourth proportional to 646,827,787.60, 970,241,681.40 and 186,780,965.20 is: 280,171,447.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,827,787.60 : 970,241,681.40 = 186,780,965.20 : x
  2. Step 2: Convert to fraction form
    646,827,787.60/970,241,681.40 = 186,780,965.20/x
  3. Step 3: Cross multiply
    646,827,787.60x = 970,241,681.40 × 186,780,965.20
  4. Step 4: Simplify right side
    646,827,787.60x = 181,222,677,729,162,880
  5. Step 5: Solve for x
    x = 181,222,677,729,162,880/646,827,787.60
  6. Step 6: Final answer
    x = 280,171,447.80

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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.