Home / 21,017,221,509.53-29,003,746,944.92-11,863,677,059.70

Finding the Fourth Proportional to 21,017,221,509.53, 29,003,746,944.92 and 11,863,677,059.70

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Solution

The fourth proportional to 21,017,221,509.53, 29,003,746,944.92 and 11,863,677,059.70 is: 16,371,863,765.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,017,221,509.53 : 29,003,746,944.92 = 11,863,677,059.70 : x
  2. Step 2: Convert to fraction form
    21,017,221,509.53/29,003,746,944.92 = 11,863,677,059.70/x
  3. Step 3: Cross multiply
    21,017,221,509.53x = 29,003,746,944.92 × 11,863,677,059.70
  4. Step 4: Simplify right side
    21,017,221,509.53x = 344,091,087,275,743,903,744
  5. Step 5: Solve for x
    x = 344,091,087,275,743,903,744/21,017,221,509.53
  6. Step 6: Final answer
    x = 16,371,863,765.14

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1.5x scale

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.