Home / 90,790,426.57-125,280,442.17-51,090,289.19

Finding the Fourth Proportional to 90,790,426.57, 125,280,442.17 and 51,090,289.19

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Solution

The fourth proportional to 90,790,426.57, 125,280,442.17 and 51,090,289.19 is: 70,498,776.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,790,426.57 : 125,280,442.17 = 51,090,289.19 : x
  2. Step 2: Convert to fraction form
    90,790,426.57/125,280,442.17 = 51,090,289.19/x
  3. Step 3: Cross multiply
    90,790,426.57x = 125,280,442.17 × 51,090,289.19
  4. Step 4: Simplify right side
    90,790,426.57x = 6,400,614,020,629,573
  5. Step 5: Solve for x
    x = 6,400,614,020,629,573/90,790,426.57
  6. Step 6: Final answer
    x = 70,498,776.83

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1.5x scale

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.