Home / 22,158,156.92-30,578,139.84-12,868,011.77

Finding the Fourth Proportional to 22,158,156.92, 30,578,139.84 and 12,868,011.77

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Solution

The fourth proportional to 22,158,156.92, 30,578,139.84 and 12,868,011.77 is: 17,757,788.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,158,156.92 : 30,578,139.84 = 12,868,011.77 : x
  2. Step 2: Convert to fraction form
    22,158,156.92/30,578,139.84 = 12,868,011.77/x
  3. Step 3: Cross multiply
    22,158,156.92x = 30,578,139.84 × 12,868,011.77
  4. Step 4: Simplify right side
    22,158,156.92x = 393,479,863,212,935.25
  5. Step 5: Solve for x
    x = 393,479,863,212,935.25/22,158,156.92
  6. Step 6: Final answer
    x = 17,757,788.46

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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.