Home / 13,240,106,800.13-18,271,342,137.81-7,218,617,123.76

Finding the Fourth Proportional to 13,240,106,800.13, 18,271,342,137.81 and 7,218,617,123.76

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Solution

The fourth proportional to 13,240,106,800.13, 18,271,342,137.81 and 7,218,617,123.76 is: 9,961,688,770.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,240,106,800.13 : 18,271,342,137.81 = 7,218,617,123.76 : x
  2. Step 2: Convert to fraction form
    13,240,106,800.13/18,271,342,137.81 = 7,218,617,123.76/x
  3. Step 3: Cross multiply
    13,240,106,800.13x = 18,271,342,137.81 × 7,218,617,123.76
  4. Step 4: Simplify right side
    13,240,106,800.13x = 131,893,823,230,025,138,176
  5. Step 5: Solve for x
    x = 131,893,823,230,025,138,176/13,240,106,800.13
  6. Step 6: Final answer
    x = 9,961,688,770.42

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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.