Home / 206,774,051.81-285,348,236.43-112,688,221.04

Finding the Fourth Proportional to 206,774,051.81, 285,348,236.43 and 112,688,221.04

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Solution

The fourth proportional to 206,774,051.81, 285,348,236.43 and 112,688,221.04 is: 155,509,769.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,774,051.81 : 285,348,236.43 = 112,688,221.04 : x
  2. Step 2: Convert to fraction form
    206,774,051.81/285,348,236.43 = 112,688,221.04/x
  3. Step 3: Cross multiply
    206,774,051.81x = 285,348,236.43 × 112,688,221.04
  4. Step 4: Simplify right side
    206,774,051.81x = 32,155,385,140,265,040
  5. Step 5: Solve for x
    x = 32,155,385,140,265,040/206,774,051.81
  6. Step 6: Final answer
    x = 155,509,769.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.