Home / 257,152,353,859.20-354,890,099,400.78-154,273,326,616.55

Finding the Fourth Proportional to 257,152,353,859.20, 354,890,099,400.78 and 154,273,326,616.55

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Solution

The fourth proportional to 257,152,353,859.20, 354,890,099,400.78 and 154,273,326,616.55 is: 212,909,099,979.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,152,353,859.20 : 354,890,099,400.78 = 154,273,326,616.55 : x
  2. Step 2: Convert to fraction form
    257,152,353,859.20/354,890,099,400.78 = 154,273,326,616.55/x
  3. Step 3: Cross multiply
    257,152,353,859.20x = 354,890,099,400.78 × 154,273,326,616.55
  4. Step 4: Simplify right side
    257,152,353,859.20x = 54,750,076,217,836,427,018,240
  5. Step 5: Solve for x
    x = 54,750,076,217,836,427,018,240/257,152,353,859.20
  6. Step 6: Final answer
    x = 212,909,099,979.75

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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.