Home / 191,489,628.80-287,150,462.40-76,435,932.80

Finding the Fourth Proportional to 191,489,628.80, 287,150,462.40 and 76,435,932.80

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Solution

The fourth proportional to 191,489,628.80, 287,150,462.40 and 76,435,932.80 is: 114,620,377.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,489,628.80 : 287,150,462.40 = 76,435,932.80 : x
  2. Step 2: Convert to fraction form
    191,489,628.80/287,150,462.40 = 76,435,932.80/x
  3. Step 3: Cross multiply
    191,489,628.80x = 287,150,462.40 × 76,435,932.80
  4. Step 4: Simplify right side
    191,489,628.80x = 21,948,613,447,495,324
  5. Step 5: Solve for x
    x = 21,948,613,447,495,324/191,489,628.80
  6. Step 6: Final answer
    x = 114,620,377.01

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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.