Home / 210,616,615.80-315,924,923.70-141,741,862.20

Finding the Fourth Proportional to 210,616,615.80, 315,924,923.70 and 141,741,862.20

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Solution

The fourth proportional to 210,616,615.80, 315,924,923.70 and 141,741,862.20 is: 212,612,793.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,616,615.80 : 315,924,923.70 = 141,741,862.20 : x
  2. Step 2: Convert to fraction form
    210,616,615.80/315,924,923.70 = 141,741,862.20/x
  3. Step 3: Cross multiply
    210,616,615.80x = 315,924,923.70 × 141,741,862.20
  4. Step 4: Simplify right side
    210,616,615.80x = 44,779,787,000,630,912
  5. Step 5: Solve for x
    x = 44,779,787,000,630,912/210,616,615.80
  6. Step 6: Final answer
    x = 212,612,793.30

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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.