Home / 646,822,821.60-970,234,232.40-186,775,999.20

Finding the Fourth Proportional to 646,822,821.60, 970,234,232.40 and 186,775,999.20

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Solution

The fourth proportional to 646,822,821.60, 970,234,232.40 and 186,775,999.20 is: 280,163,998.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,822,821.60 : 970,234,232.40 = 186,775,999.20 : x
  2. Step 2: Convert to fraction form
    646,822,821.60/970,234,232.40 = 186,775,999.20/x
  3. Step 3: Cross multiply
    646,822,821.60x = 970,234,232.40 × 186,775,999.20
  4. Step 4: Simplify right side
    646,822,821.60x = 181,216,468,214,555,008
  5. Step 5: Solve for x
    x = 181,216,468,214,555,008/646,822,821.60
  6. Step 6: Final answer
    x = 280,163,998.80

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1.5x scale

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.