Home / 990,056,853.45-1,485,085,280.18-498,580,216.65

Finding the Fourth Proportional to 990,056,853.45, 1,485,085,280.18 and 498,580,216.65

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Solution

The fourth proportional to 990,056,853.45, 1,485,085,280.18 and 498,580,216.65 is: 747,870,324.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,056,853.45 : 1,485,085,280.18 = 498,580,216.65 : x
  2. Step 2: Convert to fraction form
    990,056,853.45/1,485,085,280.18 = 498,580,216.65/x
  3. Step 3: Cross multiply
    990,056,853.45x = 1,485,085,280.18 × 498,580,216.65
  4. Step 4: Simplify right side
    990,056,853.45x = 740,434,140,733,377,408
  5. Step 5: Solve for x
    x = 740,434,140,733,377,408/990,056,853.45
  6. Step 6: Final answer
    x = 747,870,324.98

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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.