Home / 127,724,579.40-191,586,869.10-87,413,795.40

Finding the Fourth Proportional to 127,724,579.40, 191,586,869.10 and 87,413,795.40

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Solution

The fourth proportional to 127,724,579.40, 191,586,869.10 and 87,413,795.40 is: 131,120,693.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,724,579.40 : 191,586,869.10 = 87,413,795.40 : x
  2. Step 2: Convert to fraction form
    127,724,579.40/191,586,869.10 = 87,413,795.40/x
  3. Step 3: Cross multiply
    127,724,579.40x = 191,586,869.10 × 87,413,795.40
  4. Step 4: Simplify right side
    127,724,579.40x = 16,747,335,376,833,982
  5. Step 5: Solve for x
    x = 16,747,335,376,833,982/127,724,579.40
  6. Step 6: Final answer
    x = 131,120,693.10

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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.