Home / 517,268,711.64-776,005,280.55-189,747,265.80

Finding the Fourth Proportional to 517,268,711.64, 776,005,280.55 and 189,747,265.80

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Solution

The fourth proportional to 517,268,711.64, 776,005,280.55 and 189,747,265.80 is: 284,658,393.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,268,711.64 : 776,005,280.55 = 189,747,265.80 : x
  2. Step 2: Convert to fraction form
    517,268,711.64/776,005,280.55 = 189,747,265.80/x
  3. Step 3: Cross multiply
    517,268,711.64x = 776,005,280.55 × 189,747,265.80
  4. Step 4: Simplify right side
    517,268,711.64x = 147,244,880,230,724,416
  5. Step 5: Solve for x
    x = 147,244,880,230,724,416/517,268,711.64
  6. Step 6: Final answer
    x = 284,658,393.05

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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.