Home / 112,345,689.20-168,518,533.80-99,356,658.80

Finding the Fourth Proportional to 112,345,689.20, 168,518,533.80 and 99,356,658.80

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Solution

The fourth proportional to 112,345,689.20, 168,518,533.80 and 99,356,658.80 is: 149,034,988.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,345,689.20 : 168,518,533.80 = 99,356,658.80 : x
  2. Step 2: Convert to fraction form
    112,345,689.20/168,518,533.80 = 99,356,658.80/x
  3. Step 3: Cross multiply
    112,345,689.20x = 168,518,533.80 × 99,356,658.80
  4. Step 4: Simplify right side
    112,345,689.20x = 16,743,438,464,242,868
  5. Step 5: Solve for x
    x = 16,743,438,464,242,868/112,345,689.20
  6. Step 6: Final answer
    x = 149,034,988.20

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1.5x scale

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.