Home / 256,230,211.40-384,307,992.30-74,458,435.40

Finding the Fourth Proportional to 256,230,211.40, 384,307,992.30 and 74,458,435.40

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Solution

The fourth proportional to 256,230,211.40, 384,307,992.30 and 74,458,435.40 is: 111,676,806.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,230,211.40 : 384,307,992.30 = 74,458,435.40 : x
  2. Step 2: Convert to fraction form
    256,230,211.40/384,307,992.30 = 74,458,435.40/x
  3. Step 3: Cross multiply
    256,230,211.40x = 384,307,992.30 × 74,458,435.40
  4. Step 4: Simplify right side
    256,230,211.40x = 28,614,971,818,373,252
  5. Step 5: Solve for x
    x = 28,614,971,818,373,252/256,230,211.40
  6. Step 6: Final answer
    x = 111,676,806.81

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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.