Home / 485,444,482.06-670,095,558.90-318,191,517.22

Finding the Fourth Proportional to 485,444,482.06, 670,095,558.90 and 318,191,517.22

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Solution

The fourth proportional to 485,444,482.06, 670,095,558.90 and 318,191,517.22 is: 439,223,702.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,444,482.06 : 670,095,558.90 = 318,191,517.22 : x
  2. Step 2: Convert to fraction form
    485,444,482.06/670,095,558.90 = 318,191,517.22/x
  3. Step 3: Cross multiply
    485,444,482.06x = 670,095,558.90 × 318,191,517.22
  4. Step 4: Simplify right side
    485,444,482.06x = 213,218,722,568,774,880
  5. Step 5: Solve for x
    x = 213,218,722,568,774,880/485,444,482.06
  6. Step 6: Final answer
    x = 439,223,702.09

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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.