Home / 786,734,036.90-1,085,696,438.60-434,312,923.55

Finding the Fourth Proportional to 786,734,036.90, 1,085,696,438.60 and 434,312,923.55

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Solution

The fourth proportional to 786,734,036.90, 1,085,696,438.60 and 434,312,923.55 is: 599,353,748.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,734,036.90 : 1,085,696,438.60 = 434,312,923.55 : x
  2. Step 2: Convert to fraction form
    786,734,036.90/1,085,696,438.60 = 434,312,923.55/x
  3. Step 3: Cross multiply
    786,734,036.90x = 1,085,696,438.60 × 434,312,923.55
  4. Step 4: Simplify right side
    786,734,036.90x = 471,531,994,336,189,056
  5. Step 5: Solve for x
    x = 471,531,994,336,189,056/786,734,036.90
  6. Step 6: Final answer
    x = 599,353,748.81

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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.