Home / 377,251,971.84-520,607,640.96-209,984,626.08

Finding the Fourth Proportional to 377,251,971.84, 520,607,640.96 and 209,984,626.08

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Solution

The fourth proportional to 377,251,971.84, 520,607,640.96 and 209,984,626.08 is: 289,778,739.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,251,971.84 : 520,607,640.96 = 209,984,626.08 : x
  2. Step 2: Convert to fraction form
    377,251,971.84/520,607,640.96 = 209,984,626.08/x
  3. Step 3: Cross multiply
    377,251,971.84x = 520,607,640.96 × 209,984,626.08
  4. Step 4: Simplify right side
    377,251,971.84x = 109,319,600,821,376,496
  5. Step 5: Solve for x
    x = 109,319,600,821,376,496/377,251,971.84
  6. Step 6: Final answer
    x = 289,778,739.36

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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.