Home / 786,734,034.69-1,085,696,435.56-434,312,921.35

Finding the Fourth Proportional to 786,734,034.69, 1,085,696,435.56 and 434,312,921.35

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Solution

The fourth proportional to 786,734,034.69, 1,085,696,435.56 and 434,312,921.35 is: 599,353,745.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,734,034.69 : 1,085,696,435.56 = 434,312,921.35 : x
  2. Step 2: Convert to fraction form
    786,734,034.69/1,085,696,435.56 = 434,312,921.35/x
  3. Step 3: Cross multiply
    786,734,034.69x = 1,085,696,435.56 × 434,312,921.35
  4. Step 4: Simplify right side
    786,734,034.69x = 471,531,990,629,223,872
  5. Step 5: Solve for x
    x = 471,531,990,629,223,872/786,734,034.69
  6. Step 6: Final answer
    x = 599,353,745.78

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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.