Home / 191,505,139.90-287,257,709.85-133,054,503.10

Finding the Fourth Proportional to 191,505,139.90, 287,257,709.85 and 133,054,503.10

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Solution

The fourth proportional to 191,505,139.90, 287,257,709.85 and 133,054,503.10 is: 199,581,754.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,505,139.90 : 287,257,709.85 = 133,054,503.10 : x
  2. Step 2: Convert to fraction form
    191,505,139.90/287,257,709.85 = 133,054,503.10/x
  3. Step 3: Cross multiply
    191,505,139.90x = 287,257,709.85 × 133,054,503.10
  4. Step 4: Simplify right side
    191,505,139.90x = 38,220,931,845,735,728
  5. Step 5: Solve for x
    x = 38,220,931,845,735,728/191,505,139.90
  6. Step 6: Final answer
    x = 199,581,754.65

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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.