Home / 431,277,908.07-646,686,694.02-223,807,420.41

Finding the Fourth Proportional to 431,277,908.07, 646,686,694.02 and 223,807,420.41

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Solution

The fourth proportional to 431,277,908.07, 646,686,694.02 and 223,807,420.41 is: 335,591,687.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,277,908.07 : 646,686,694.02 = 223,807,420.41 : x
  2. Step 2: Convert to fraction form
    431,277,908.07/646,686,694.02 = 223,807,420.41/x
  3. Step 3: Cross multiply
    431,277,908.07x = 646,686,694.02 × 223,807,420.41
  4. Step 4: Simplify right side
    431,277,908.07x = 144,733,280,802,087,168
  5. Step 5: Solve for x
    x = 144,733,280,802,087,168/431,277,908.07
  6. Step 6: Final answer
    x = 335,591,687.16

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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.