Home / 985,465,019.34-1,359,942,152.40-539,430,926.49

Finding the Fourth Proportional to 985,465,019.34, 1,359,942,152.40 and 539,430,926.49

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Solution

The fourth proportional to 985,465,019.34, 1,359,942,152.40 and 539,430,926.49 is: 744,414,911.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,465,019.34 : 1,359,942,152.40 = 539,430,926.49 : x
  2. Step 2: Convert to fraction form
    985,465,019.34/1,359,942,152.40 = 539,430,926.49/x
  3. Step 3: Cross multiply
    985,465,019.34x = 1,359,942,152.40 × 539,430,926.49
  4. Step 4: Simplify right side
    985,465,019.34x = 733,594,855,241,936,896
  5. Step 5: Solve for x
    x = 733,594,855,241,936,896/985,465,019.34
  6. Step 6: Final answer
    x = 744,414,911.58

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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.