Home / 45,139,981.50-62,312,245.38-30,475,512.54

Finding the Fourth Proportional to 45,139,981.50, 62,312,245.38 and 30,475,512.54

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Solution

The fourth proportional to 45,139,981.50, 62,312,245.38 and 30,475,512.54 is: 42,069,082.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,139,981.50 : 62,312,245.38 = 30,475,512.54 : x
  2. Step 2: Convert to fraction form
    45,139,981.50/62,312,245.38 = 30,475,512.54/x
  3. Step 3: Cross multiply
    45,139,981.50x = 62,312,245.38 × 30,475,512.54
  4. Step 4: Simplify right side
    45,139,981.50x = 1,898,997,615,473,747
  5. Step 5: Solve for x
    x = 1,898,997,615,473,747/45,139,981.50
  6. Step 6: Final answer
    x = 42,069,082.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.