Home / 462,967,811.43-697,223,129.88-421,642,959.27

Finding the Fourth Proportional to 462,967,811.43, 697,223,129.88 and 421,642,959.27

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Solution

The fourth proportional to 462,967,811.43, 697,223,129.88 and 421,642,959.27 is: 634,988,473.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,967,811.43 : 697,223,129.88 = 421,642,959.27 : x
  2. Step 2: Convert to fraction form
    462,967,811.43/697,223,129.88 = 421,642,959.27/x
  3. Step 3: Cross multiply
    462,967,811.43x = 697,223,129.88 × 421,642,959.27
  4. Step 4: Simplify right side
    462,967,811.43x = 293,979,223,754,094,720
  5. Step 5: Solve for x
    x = 293,979,223,754,094,720/462,967,811.43
  6. Step 6: Final answer
    x = 634,988,473.27

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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.