Home / 20,371,164,708.97-30,556,739,871.47-5,447,942,417.21

Finding the Fourth Proportional to 20,371,164,708.97, 30,556,739,871.47 and 5,447,942,417.21

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Solution

The fourth proportional to 20,371,164,708.97, 30,556,739,871.47 and 5,447,942,417.21 is: 8,171,911,702.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,371,164,708.97 : 30,556,739,871.47 = 5,447,942,417.21 : x
  2. Step 2: Convert to fraction form
    20,371,164,708.97/30,556,739,871.47 = 5,447,942,417.21/x
  3. Step 3: Cross multiply
    20,371,164,708.97x = 30,556,739,871.47 × 5,447,942,417.21
  4. Step 4: Simplify right side
    20,371,164,708.97x = 166,471,359,277,291,569,152
  5. Step 5: Solve for x
    x = 166,471,359,277,291,569,152/20,371,164,708.97
  6. Step 6: Final answer
    x = 8,171,911,702.43

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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.