Home / 431,641,531.80-646,718,280.30-201,137,855.40

Finding the Fourth Proportional to 431,641,531.80, 646,718,280.30 and 201,137,855.40

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Solution

The fourth proportional to 431,641,531.80, 646,718,280.30 and 201,137,855.40 is: 301,360,083.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,641,531.80 : 646,718,280.30 = 201,137,855.40 : x
  2. Step 2: Convert to fraction form
    431,641,531.80/646,718,280.30 = 201,137,855.40/x
  3. Step 3: Cross multiply
    431,641,531.80x = 646,718,280.30 × 201,137,855.40
  4. Step 4: Simplify right side
    431,641,531.80x = 130,079,527,947,518,064
  5. Step 5: Solve for x
    x = 130,079,527,947,518,064/431,641,531.80
  6. Step 6: Final answer
    x = 301,360,083.23

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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.