Home / 517,742,625.64-776,616,841.72-172,695,305.40

Finding the Fourth Proportional to 517,742,625.64, 776,616,841.72 and 172,695,305.40

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Solution

The fourth proportional to 517,742,625.64, 776,616,841.72 and 172,695,305.40 is: 259,043,926.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,742,625.64 : 776,616,841.72 = 172,695,305.40 : x
  2. Step 2: Convert to fraction form
    517,742,625.64/776,616,841.72 = 172,695,305.40/x
  3. Step 3: Cross multiply
    517,742,625.64x = 776,616,841.72 × 172,695,305.40
  4. Step 4: Simplify right side
    517,742,625.64x = 134,118,082,659,618,864
  5. Step 5: Solve for x
    x = 134,118,082,659,618,864/517,742,625.64
  6. Step 6: Final answer
    x = 259,043,926.50

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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.