Home / 743,689,685.07-1,114,241,747.76-521,890,618.59

Finding the Fourth Proportional to 743,689,685.07, 1,114,241,747.76 and 521,890,618.59

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Solution

The fourth proportional to 743,689,685.07, 1,114,241,747.76 and 521,890,618.59 is: 781,928,708.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,689,685.07 : 1,114,241,747.76 = 521,890,618.59 : x
  2. Step 2: Convert to fraction form
    743,689,685.07/1,114,241,747.76 = 521,890,618.59/x
  3. Step 3: Cross multiply
    743,689,685.07x = 1,114,241,747.76 × 521,890,618.59
  4. Step 4: Simplify right side
    743,689,685.07x = 581,512,314,997,269,120
  5. Step 5: Solve for x
    x = 581,512,314,997,269,120/743,689,685.07
  6. Step 6: Final answer
    x = 781,928,708.53

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1.5x scale

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.