Home / 425,674,996.20-638,606,972.70-195,588,599.40

Finding the Fourth Proportional to 425,674,996.20, 638,606,972.70 and 195,588,599.40

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Solution

The fourth proportional to 425,674,996.20, 638,606,972.70 and 195,588,599.40 is: 293,426,309.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,674,996.20 : 638,606,972.70 = 195,588,599.40 : x
  2. Step 2: Convert to fraction form
    425,674,996.20/638,606,972.70 = 195,588,599.40/x
  3. Step 3: Cross multiply
    425,674,996.20x = 638,606,972.70 × 195,588,599.40
  4. Step 4: Simplify right side
    425,674,996.20x = 124,904,243,357,467,056
  5. Step 5: Solve for x
    x = 124,904,243,357,467,056/425,674,996.20
  6. Step 6: Final answer
    x = 293,426,309.91

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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.