Home / 119,231,999.80-178,847,999.70-42,641,510.20

Finding the Fourth Proportional to 119,231,999.80, 178,847,999.70 and 42,641,510.20

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Solution

The fourth proportional to 119,231,999.80, 178,847,999.70 and 42,641,510.20 is: 63,962,265.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,231,999.80 : 178,847,999.70 = 42,641,510.20 : x
  2. Step 2: Convert to fraction form
    119,231,999.80/178,847,999.70 = 42,641,510.20/x
  3. Step 3: Cross multiply
    119,231,999.80x = 178,847,999.70 × 42,641,510.20
  4. Step 4: Simplify right side
    119,231,999.80x = 7,626,348,803,457,147
  5. Step 5: Solve for x
    x = 7,626,348,803,457,147/119,231,999.80
  6. Step 6: Final answer
    x = 63,962,265.30

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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.