Home / 90,990,059.20-136,485,088.80-56,552,682.40

Finding the Fourth Proportional to 90,990,059.20, 136,485,088.80 and 56,552,682.40

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Solution

The fourth proportional to 90,990,059.20, 136,485,088.80 and 56,552,682.40 is: 84,829,023.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,990,059.20 : 136,485,088.80 = 56,552,682.40 : x
  2. Step 2: Convert to fraction form
    90,990,059.20/136,485,088.80 = 56,552,682.40/x
  3. Step 3: Cross multiply
    90,990,059.20x = 136,485,088.80 × 56,552,682.40
  4. Step 4: Simplify right side
    90,990,059.20x = 7,718,597,879,242,198
  5. Step 5: Solve for x
    x = 7,718,597,879,242,198/90,990,059.20
  6. Step 6: Final answer
    x = 84,829,023.60

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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.