Home / 919,091,347.20-1,379,308,867.20-646,993,555.20

Finding the Fourth Proportional to 919,091,347.20, 1,379,308,867.20 and 646,993,555.20

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Solution

The fourth proportional to 919,091,347.20, 1,379,308,867.20 and 646,993,555.20 is: 970,963,278.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,091,347.20 : 1,379,308,867.20 = 646,993,555.20 : x
  2. Step 2: Convert to fraction form
    919,091,347.20/1,379,308,867.20 = 646,993,555.20/x
  3. Step 3: Cross multiply
    919,091,347.20x = 1,379,308,867.20 × 646,993,555.20
  4. Step 4: Simplify right side
    919,091,347.20x = 892,403,947,708,612,736
  5. Step 5: Solve for x
    x = 892,403,947,708,612,736/919,091,347.20
  6. Step 6: Final answer
    x = 970,963,278.49

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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.