Home / 70,123,911.10-105,185,865.03-19,005,928.90

Finding the Fourth Proportional to 70,123,911.10, 105,185,865.03 and 19,005,928.90

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Solution

The fourth proportional to 70,123,911.10, 105,185,865.03 and 19,005,928.90 is: 28,508,892.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,123,911.10 : 105,185,865.03 = 19,005,928.90 : x
  2. Step 2: Convert to fraction form
    70,123,911.10/105,185,865.03 = 19,005,928.90/x
  3. Step 3: Cross multiply
    70,123,911.10x = 105,185,865.03 × 19,005,928.90
  4. Step 4: Simplify right side
    70,123,911.10x = 1,999,155,072,045,176.25
  5. Step 5: Solve for x
    x = 1,999,155,072,045,176.25/70,123,911.10
  6. Step 6: Final answer
    x = 28,508,892.91

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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.