Home / 102,519,139.70-153,778,709.55-30,715,555.70

Finding the Fourth Proportional to 102,519,139.70, 153,778,709.55 and 30,715,555.70

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Solution

The fourth proportional to 102,519,139.70, 153,778,709.55 and 30,715,555.70 is: 46,073,333.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,519,139.70 : 153,778,709.55 = 30,715,555.70 : x
  2. Step 2: Convert to fraction form
    102,519,139.70/153,778,709.55 = 30,715,555.70/x
  3. Step 3: Cross multiply
    102,519,139.70x = 153,778,709.55 × 30,715,555.70
  4. Step 4: Simplify right side
    102,519,139.70x = 4,723,398,518,657,147
  5. Step 5: Solve for x
    x = 4,723,398,518,657,147/102,519,139.70
  6. Step 6: Final answer
    x = 46,073,333.55

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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.