Home / 90,027,200.45-124,235,917.13-50,868,136.45

Finding the Fourth Proportional to 90,027,200.45, 124,235,917.13 and 50,868,136.45

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Solution

The fourth proportional to 90,027,200.45, 124,235,917.13 and 50,868,136.45 is: 70,197,113.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,027,200.45 : 124,235,917.13 = 50,868,136.45 : x
  2. Step 2: Convert to fraction form
    90,027,200.45/124,235,917.13 = 50,868,136.45/x
  3. Step 3: Cross multiply
    90,027,200.45x = 124,235,917.13 × 50,868,136.45
  4. Step 4: Simplify right side
    90,027,200.45x = 6,319,649,584,842,197
  5. Step 5: Solve for x
    x = 6,319,649,584,842,197/90,027,200.45
  6. Step 6: Final answer
    x = 70,197,113.24

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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.