Home / 517,268,421.39-776,004,845.18-189,746,975.55

Finding the Fourth Proportional to 517,268,421.39, 776,004,845.18 and 189,746,975.55

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Solution

The fourth proportional to 517,268,421.39, 776,004,845.18 and 189,746,975.55 is: 284,657,957.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,268,421.39 : 776,004,845.18 = 189,746,975.55 : x
  2. Step 2: Convert to fraction form
    517,268,421.39/776,004,845.18 = 189,746,975.55/x
  3. Step 3: Cross multiply
    517,268,421.39x = 776,004,845.18 × 189,746,975.55
  4. Step 4: Simplify right side
    517,268,421.39x = 147,244,572,385,051,008
  5. Step 5: Solve for x
    x = 147,244,572,385,051,008/517,268,421.39
  6. Step 6: Final answer
    x = 284,657,957.64

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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.