Home / 988,539,128.57-1,364,093,830.71-586,583,611.35

Finding the Fourth Proportional to 988,539,128.57, 1,364,093,830.71 and 586,583,611.35

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Solution

The fourth proportional to 988,539,128.57, 1,364,093,830.71 and 586,583,611.35 is: 809,431,880.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,539,128.57 : 1,364,093,830.71 = 586,583,611.35 : x
  2. Step 2: Convert to fraction form
    988,539,128.57/1,364,093,830.71 = 586,583,611.35/x
  3. Step 3: Cross multiply
    988,539,128.57x = 1,364,093,830.71 × 586,583,611.35
  4. Step 4: Simplify right side
    988,539,128.57x = 800,155,085,446,992,640
  5. Step 5: Solve for x
    x = 800,155,085,446,992,640/988,539,128.57
  6. Step 6: Final answer
    x = 809,431,880.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.