Home / 143,856,009.20-215,784,013.80-130,676,272.40

Finding the Fourth Proportional to 143,856,009.20, 215,784,013.80 and 130,676,272.40

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Solution

The fourth proportional to 143,856,009.20, 215,784,013.80 and 130,676,272.40 is: 196,014,408.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,856,009.20 : 215,784,013.80 = 130,676,272.40 : x
  2. Step 2: Convert to fraction form
    143,856,009.20/215,784,013.80 = 130,676,272.40/x
  3. Step 3: Cross multiply
    143,856,009.20x = 215,784,013.80 × 130,676,272.40
  4. Step 4: Simplify right side
    143,856,009.20x = 28,197,850,566,894,160
  5. Step 5: Solve for x
    x = 28,197,850,566,894,160/143,856,009.20
  6. Step 6: Final answer
    x = 196,014,408.60

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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.