Home / 753,965,139.20-1,130,821,737.60-208,761,785.60

Finding the Fourth Proportional to 753,965,139.20, 1,130,821,737.60 and 208,761,785.60

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Solution

The fourth proportional to 753,965,139.20, 1,130,821,737.60 and 208,761,785.60 is: 313,107,798.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,965,139.20 : 1,130,821,737.60 = 208,761,785.60 : x
  2. Step 2: Convert to fraction form
    753,965,139.20/1,130,821,737.60 = 208,761,785.60/x
  3. Step 3: Cross multiply
    753,965,139.20x = 1,130,821,737.60 × 208,761,785.60
  4. Step 4: Simplify right side
    753,965,139.20x = 236,072,365,136,670,624
  5. Step 5: Solve for x
    x = 236,072,365,136,670,624/753,965,139.20
  6. Step 6: Final answer
    x = 313,107,798.84

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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.