Home / 142,676,460.80-214,021,689.60-74,652,012.80

Finding the Fourth Proportional to 142,676,460.80, 214,021,689.60 and 74,652,012.80

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Solution

The fourth proportional to 142,676,460.80, 214,021,689.60 and 74,652,012.80 is: 111,981,680.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,676,460.80 : 214,021,689.60 = 74,652,012.80 : x
  2. Step 2: Convert to fraction form
    142,676,460.80/214,021,689.60 = 74,652,012.80/x
  3. Step 3: Cross multiply
    142,676,460.80x = 214,021,689.60 × 74,652,012.80
  4. Step 4: Simplify right side
    142,676,460.80x = 15,977,149,911,496,826
  5. Step 5: Solve for x
    x = 15,977,149,911,496,826/142,676,460.80
  6. Step 6: Final answer
    x = 111,981,680.94

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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.