Home / 143,745,422.40-215,618,133.60-67,217,918.40

Finding the Fourth Proportional to 143,745,422.40, 215,618,133.60 and 67,217,918.40

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Solution

The fourth proportional to 143,745,422.40, 215,618,133.60 and 67,217,918.40 is: 100,826,877.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,745,422.40 : 215,618,133.60 = 67,217,918.40 : x
  2. Step 2: Convert to fraction form
    143,745,422.40/215,618,133.60 = 67,217,918.40/x
  3. Step 3: Cross multiply
    143,745,422.40x = 215,618,133.60 × 67,217,918.40
  4. Step 4: Simplify right side
    143,745,422.40x = 14,493,402,109,885,100
  5. Step 5: Solve for x
    x = 14,493,402,109,885,100/143,745,422.40
  6. Step 6: Final answer
    x = 100,826,877.60

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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.