Home / 272,931,451.77-409,336,818.60-78,800,656.89

Finding the Fourth Proportional to 272,931,451.77, 409,336,818.60 and 78,800,656.89

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Solution

The fourth proportional to 272,931,451.77, 409,336,818.60 and 78,800,656.89 is: 118,183,558.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,931,451.77 : 409,336,818.60 = 78,800,656.89 : x
  2. Step 2: Convert to fraction form
    272,931,451.77/409,336,818.60 = 78,800,656.89/x
  3. Step 3: Cross multiply
    272,931,451.77x = 409,336,818.60 × 78,800,656.89
  4. Step 4: Simplify right side
    272,931,451.77x = 32,256,010,194,942,772
  5. Step 5: Solve for x
    x = 32,256,010,194,942,772/272,931,451.77
  6. Step 6: Final answer
    x = 118,183,558.49

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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.