Home / 90,990,107.20-136,485,160.80-56,552,730.40

Finding the Fourth Proportional to 90,990,107.20, 136,485,160.80 and 56,552,730.40

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Solution

The fourth proportional to 90,990,107.20, 136,485,160.80 and 56,552,730.40 is: 84,829,095.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,990,107.20 : 136,485,160.80 = 56,552,730.40 : x
  2. Step 2: Convert to fraction form
    90,990,107.20/136,485,160.80 = 56,552,730.40/x
  3. Step 3: Cross multiply
    90,990,107.20x = 136,485,160.80 × 56,552,730.40
  4. Step 4: Simplify right side
    90,990,107.20x = 7,718,608,502,323,049
  5. Step 5: Solve for x
    x = 7,718,608,502,323,049/90,990,107.20
  6. Step 6: Final answer
    x = 84,829,095.60

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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.