Home / 191,739,419.70-287,609,129.56-133,068,333.30

Finding the Fourth Proportional to 191,739,419.70, 287,609,129.56 and 133,068,333.30

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Solution

The fourth proportional to 191,739,419.70, 287,609,129.56 and 133,068,333.30 is: 199,602,499.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,739,419.70 : 287,609,129.56 = 133,068,333.30 : x
  2. Step 2: Convert to fraction form
    191,739,419.70/287,609,129.56 = 133,068,333.30/x
  3. Step 3: Cross multiply
    191,739,419.70x = 287,609,129.56 × 133,068,333.30
  4. Step 4: Simplify right side
    191,739,419.70x = 38,271,667,512,412,960
  5. Step 5: Solve for x
    x = 38,271,667,512,412,960/191,739,419.70
  6. Step 6: Final answer
    x = 199,602,499.96

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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.