Home / 191,564,840.40-287,384,585.40-76,529,806.80

Finding the Fourth Proportional to 191,564,840.40, 287,384,585.40 and 76,529,806.80

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Solution

The fourth proportional to 191,564,840.40, 287,384,585.40 and 76,529,806.80 is: 114,809,621.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,564,840.40 : 287,384,585.40 = 76,529,806.80 : x
  2. Step 2: Convert to fraction form
    191,564,840.40/287,384,585.40 = 76,529,806.80/x
  3. Step 3: Cross multiply
    191,564,840.40x = 287,384,585.40 × 76,529,806.80
  4. Step 4: Simplify right side
    191,564,840.40x = 21,993,486,797,960,100
  5. Step 5: Solve for x
    x = 21,993,486,797,960,100/191,564,840.40
  6. Step 6: Final answer
    x = 114,809,621.39

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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.