Home / 108,870,643.80-163,305,965.70-70,323,456.60

Finding the Fourth Proportional to 108,870,643.80, 163,305,965.70 and 70,323,456.60

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Solution

The fourth proportional to 108,870,643.80, 163,305,965.70 and 70,323,456.60 is: 105,485,184.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,870,643.80 : 163,305,965.70 = 70,323,456.60 : x
  2. Step 2: Convert to fraction form
    108,870,643.80/163,305,965.70 = 70,323,456.60/x
  3. Step 3: Cross multiply
    108,870,643.80x = 163,305,965.70 × 70,323,456.60
  4. Step 4: Simplify right side
    108,870,643.80x = 11,484,239,991,425,036
  5. Step 5: Solve for x
    x = 11,484,239,991,425,036/108,870,643.80
  6. Step 6: Final answer
    x = 105,485,184.90

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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.