Home / 259,807,007.12-389,768,677.58-87,279,115.14

Finding the Fourth Proportional to 259,807,007.12, 389,768,677.58 and 87,279,115.14

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Solution

The fourth proportional to 259,807,007.12, 389,768,677.58 and 87,279,115.14 is: 130,938,213.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,807,007.12 : 389,768,677.58 = 87,279,115.14 : x
  2. Step 2: Convert to fraction form
    259,807,007.12/389,768,677.58 = 87,279,115.14/x
  3. Step 3: Cross multiply
    259,807,007.12x = 389,768,677.58 × 87,279,115.14
  4. Step 4: Simplify right side
    259,807,007.12x = 34,018,665,288,688,552
  5. Step 5: Solve for x
    x = 34,018,665,288,688,552/259,807,007.12
  6. Step 6: Final answer
    x = 130,938,213.20

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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.