Home / 621,427,060.49-931,399,323.96-288,985,305.47

Finding the Fourth Proportional to 621,427,060.49, 931,399,323.96 and 288,985,305.47

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Solution

The fourth proportional to 621,427,060.49, 931,399,323.96 and 288,985,305.47 is: 433,133,243.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,427,060.49 : 931,399,323.96 = 288,985,305.47 : x
  2. Step 2: Convert to fraction form
    621,427,060.49/931,399,323.96 = 288,985,305.47/x
  3. Step 3: Cross multiply
    621,427,060.49x = 931,399,323.96 × 288,985,305.47
  4. Step 4: Simplify right side
    621,427,060.49x = 269,160,718,146,100,384
  5. Step 5: Solve for x
    x = 269,160,718,146,100,384/621,427,060.49
  6. Step 6: Final answer
    x = 433,133,243.24

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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.