Home / 143,856,009.70-215,784,014.55-130,676,272.90

Finding the Fourth Proportional to 143,856,009.70, 215,784,014.55 and 130,676,272.90

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Solution

The fourth proportional to 143,856,009.70, 215,784,014.55 and 130,676,272.90 is: 196,014,409.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,856,009.70 : 215,784,014.55 = 130,676,272.90 : x
  2. Step 2: Convert to fraction form
    143,856,009.70/215,784,014.55 = 130,676,272.90/x
  3. Step 3: Cross multiply
    143,856,009.70x = 215,784,014.55 × 130,676,272.90
  4. Step 4: Simplify right side
    143,856,009.70x = 28,197,850,772,793,372
  5. Step 5: Solve for x
    x = 28,197,850,772,793,372/143,856,009.70
  6. Step 6: Final answer
    x = 196,014,409.35

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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.