Home / 257,784,847,387.88-355,695,864,805.82-143,596,626,719.72

Finding the Fourth Proportional to 257,784,847,387.88, 355,695,864,805.82 and 143,596,626,719.72

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Solution

The fourth proportional to 257,784,847,387.88, 355,695,864,805.82 and 143,596,626,719.72 is: 198,137,038,859.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,784,847,387.88 : 355,695,864,805.82 = 143,596,626,719.72 : x
  2. Step 2: Convert to fraction form
    257,784,847,387.88/355,695,864,805.82 = 143,596,626,719.72/x
  3. Step 3: Cross multiply
    257,784,847,387.88x = 355,695,864,805.82 × 143,596,626,719.72
  4. Step 4: Simplify right side
    257,784,847,387.88x = 51,076,726,324,269,326,270,464
  5. Step 5: Solve for x
    x = 51,076,726,324,269,326,270,464/257,784,847,387.88
  6. Step 6: Final answer
    x = 198,137,038,859.45

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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.