Home / 646,827,760.60-970,241,640.90-186,780,938.20

Finding the Fourth Proportional to 646,827,760.60, 970,241,640.90 and 186,780,938.20

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Solution

The fourth proportional to 646,827,760.60, 970,241,640.90 and 186,780,938.20 is: 280,171,407.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,827,760.60 : 970,241,640.90 = 186,780,938.20 : x
  2. Step 2: Convert to fraction form
    646,827,760.60/970,241,640.90 = 186,780,938.20/x
  3. Step 3: Cross multiply
    646,827,760.60x = 970,241,640.90 × 186,780,938.20
  4. Step 4: Simplify right side
    646,827,760.60x = 181,222,643,968,009,472
  5. Step 5: Solve for x
    x = 181,222,643,968,009,472/646,827,760.60
  6. Step 6: Final answer
    x = 280,171,407.30

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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.