Home / 843,078,690.87-1,163,570,290.44-485,778,036.08

Finding the Fourth Proportional to 843,078,690.87, 1,163,570,290.44 and 485,778,036.08

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Solution

The fourth proportional to 843,078,690.87, 1,163,570,290.44 and 485,778,036.08 is: 670,443,811.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    843,078,690.87 : 1,163,570,290.44 = 485,778,036.08 : x
  2. Step 2: Convert to fraction form
    843,078,690.87/1,163,570,290.44 = 485,778,036.08/x
  3. Step 3: Cross multiply
    843,078,690.87x = 1,163,570,290.44 × 485,778,036.08
  4. Step 4: Simplify right side
    843,078,690.87x = 565,236,890,525,160,576
  5. Step 5: Solve for x
    x = 565,236,890,525,160,576/843,078,690.87
  6. Step 6: Final answer
    x = 670,443,811.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.