Home / 85,546,905.30-128,225,879.55-47,235,914.10

Finding the Fourth Proportional to 85,546,905.30, 128,225,879.55 and 47,235,914.10

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Solution

The fourth proportional to 85,546,905.30, 128,225,879.55 and 47,235,914.10 is: 70,801,703.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,546,905.30 : 128,225,879.55 = 47,235,914.10 : x
  2. Step 2: Convert to fraction form
    85,546,905.30/128,225,879.55 = 47,235,914.10/x
  3. Step 3: Cross multiply
    85,546,905.30x = 128,225,879.55 × 47,235,914.10
  4. Step 4: Simplify right side
    85,546,905.30x = 6,056,866,631,820,747
  5. Step 5: Solve for x
    x = 6,056,866,631,820,747/85,546,905.30
  6. Step 6: Final answer
    x = 70,801,703.59

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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.