Home / 377,532,331.79-521,010,859.53-210,268,666.67

Finding the Fourth Proportional to 377,532,331.79, 521,010,859.53 and 210,268,666.67

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Solution

The fourth proportional to 377,532,331.79, 521,010,859.53 and 210,268,666.67 is: 290,179,805.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,532,331.79 : 521,010,859.53 = 210,268,666.67 : x
  2. Step 2: Convert to fraction form
    377,532,331.79/521,010,859.53 = 210,268,666.67/x
  3. Step 3: Cross multiply
    377,532,331.79x = 521,010,859.53 × 210,268,666.67
  4. Step 4: Simplify right side
    377,532,331.79x = 109,552,258,752,147,216
  5. Step 5: Solve for x
    x = 109,552,258,752,147,216/377,532,331.79
  6. Step 6: Final answer
    x = 290,179,805.88

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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.