Home / 913,462,672.82-1,370,770,387.08-388,830,918.29

Finding the Fourth Proportional to 913,462,672.82, 1,370,770,387.08 and 388,830,918.29

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Solution

The fourth proportional to 913,462,672.82, 1,370,770,387.08 and 388,830,918.29 is: 583,491,722.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,462,672.82 : 1,370,770,387.08 = 388,830,918.29 : x
  2. Step 2: Convert to fraction form
    913,462,672.82/1,370,770,387.08 = 388,830,918.29/x
  3. Step 3: Cross multiply
    913,462,672.82x = 1,370,770,387.08 × 388,830,918.29
  4. Step 4: Simplify right side
    913,462,672.82x = 532,997,908,366,201,280
  5. Step 5: Solve for x
    x = 532,997,908,366,201,280/913,462,672.82
  6. Step 6: Final answer
    x = 583,491,722.46

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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.