Home / 13,135,660,045.92-18,127,205,137.92-7,114,165,729.92

Finding the Fourth Proportional to 13,135,660,045.92, 18,127,205,137.92 and 7,114,165,729.92

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Solution

The fourth proportional to 13,135,660,045.92, 18,127,205,137.92 and 7,114,165,729.92 is: 9,817,545,606.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,135,660,045.92 : 18,127,205,137.92 = 7,114,165,729.92 : x
  2. Step 2: Convert to fraction form
    13,135,660,045.92/18,127,205,137.92 = 7,114,165,729.92/x
  3. Step 3: Cross multiply
    13,135,660,045.92x = 18,127,205,137.92 × 7,114,165,729.92
  4. Step 4: Simplify right side
    13,135,660,045.92x = 128,959,941,571,420,192,768
  5. Step 5: Solve for x
    x = 128,959,941,571,420,192,768/13,135,660,045.92
  6. Step 6: Final answer
    x = 9,817,545,606.43

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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.