Home / 143,856,681.60-215,537,016.60-67,022,122.80

Finding the Fourth Proportional to 143,856,681.60, 215,537,016.60 and 67,022,122.80

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Solution

The fourth proportional to 143,856,681.60, 215,537,016.60 and 67,022,122.80 is: 100,417,639.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,856,681.60 : 215,537,016.60 = 67,022,122.80 : x
  2. Step 2: Convert to fraction form
    143,856,681.60/215,537,016.60 = 67,022,122.80/x
  3. Step 3: Cross multiply
    143,856,681.60x = 215,537,016.60 × 67,022,122.80
  4. Step 4: Simplify right side
    143,856,681.60x = 14,445,748,394,510,838
  5. Step 5: Solve for x
    x = 14,445,748,394,510,838/143,856,681.60
  6. Step 6: Final answer
    x = 100,417,639.51

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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.