Home / 1,287,049,524.60-1,930,574,286.90-354,370,569.60

Finding the Fourth Proportional to 1,287,049,524.60, 1,930,574,286.90 and 354,370,569.60

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Solution

The fourth proportional to 1,287,049,524.60, 1,930,574,286.90 and 354,370,569.60 is: 531,555,854.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,049,524.60 : 1,930,574,286.90 = 354,370,569.60 : x
  2. Step 2: Convert to fraction form
    1,287,049,524.60/1,930,574,286.90 = 354,370,569.60/x
  3. Step 3: Cross multiply
    1,287,049,524.60x = 1,930,574,286.90 × 354,370,569.60
  4. Step 4: Simplify right side
    1,287,049,524.60x = 684,138,709,703,866,880
  5. Step 5: Solve for x
    x = 684,138,709,703,866,880/1,287,049,524.60
  6. Step 6: Final answer
    x = 531,555,854.40

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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.