Home / 343,295,999.80-514,943,999.70-84,509,164.60

Finding the Fourth Proportional to 343,295,999.80, 514,943,999.70 and 84,509,164.60

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Solution

The fourth proportional to 343,295,999.80, 514,943,999.70 and 84,509,164.60 is: 126,763,746.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,295,999.80 : 514,943,999.70 = 84,509,164.60 : x
  2. Step 2: Convert to fraction form
    343,295,999.80/514,943,999.70 = 84,509,164.60/x
  3. Step 3: Cross multiply
    343,295,999.80x = 514,943,999.70 × 84,509,164.60
  4. Step 4: Simplify right side
    343,295,999.80x = 43,517,487,230,429,648
  5. Step 5: Solve for x
    x = 43,517,487,230,429,648/343,295,999.80
  6. Step 6: Final answer
    x = 126,763,746.90

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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.