Home / 191,381,996.40-287,072,994.60-133,939,129.20

Finding the Fourth Proportional to 191,381,996.40, 287,072,994.60 and 133,939,129.20

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Solution

The fourth proportional to 191,381,996.40, 287,072,994.60 and 133,939,129.20 is: 200,908,693.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,381,996.40 : 287,072,994.60 = 133,939,129.20 : x
  2. Step 2: Convert to fraction form
    191,381,996.40/287,072,994.60 = 133,939,129.20/x
  3. Step 3: Cross multiply
    191,381,996.40x = 287,072,994.60 × 133,939,129.20
  4. Step 4: Simplify right side
    191,381,996.40x = 38,450,306,913,560,304
  5. Step 5: Solve for x
    x = 38,450,306,913,560,304/191,381,996.40
  6. Step 6: Final answer
    x = 200,908,693.80

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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.