Home / 462,967,991.62-697,223,401.36-421,643,139.46

Finding the Fourth Proportional to 462,967,991.62, 697,223,401.36 and 421,643,139.46

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Solution

The fourth proportional to 462,967,991.62, 697,223,401.36 and 421,643,139.46 is: 634,988,744.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,967,991.62 : 697,223,401.36 = 421,643,139.46 : x
  2. Step 2: Convert to fraction form
    462,967,991.62/697,223,401.36 = 421,643,139.46/x
  3. Step 3: Cross multiply
    462,967,991.62x = 697,223,401.36 × 421,643,139.46
  4. Step 4: Simplify right side
    462,967,991.62x = 293,979,463,853,982,464
  5. Step 5: Solve for x
    x = 293,979,463,853,982,464/462,967,991.62
  6. Step 6: Final answer
    x = 634,988,744.74

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.