Home / 646,827,280.60-970,240,920.90-186,780,458.20

Finding the Fourth Proportional to 646,827,280.60, 970,240,920.90 and 186,780,458.20

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Solution

The fourth proportional to 646,827,280.60, 970,240,920.90 and 186,780,458.20 is: 280,170,687.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,827,280.60 : 970,240,920.90 = 186,780,458.20 : x
  2. Step 2: Convert to fraction form
    646,827,280.60/970,240,920.90 = 186,780,458.20/x
  3. Step 3: Cross multiply
    646,827,280.60x = 970,240,920.90 × 186,780,458.20
  4. Step 4: Simplify right side
    646,827,280.60x = 181,222,043,770,091,936
  5. Step 5: Solve for x
    x = 181,222,043,770,091,936/646,827,280.60
  6. Step 6: Final answer
    x = 280,170,687.30

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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.