Home / 191,588,780.80-287,052,496.80-89,142,702.40

Finding the Fourth Proportional to 191,588,780.80, 287,052,496.80 and 89,142,702.40

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Solution

The fourth proportional to 191,588,780.80, 287,052,496.80 and 89,142,702.40 is: 133,560,196.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,588,780.80 : 287,052,496.80 = 89,142,702.40 : x
  2. Step 2: Convert to fraction form
    191,588,780.80/287,052,496.80 = 89,142,702.40/x
  3. Step 3: Cross multiply
    191,588,780.80x = 287,052,496.80 × 89,142,702.40
  4. Step 4: Simplify right side
    191,588,780.80x = 25,588,635,295,419,356
  5. Step 5: Solve for x
    x = 25,588,635,295,419,356/191,588,780.80
  6. Step 6: Final answer
    x = 133,560,196.94

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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.