Home / 1,166,003,479.80-1,749,005,219.88-389,649,140.64

Finding the Fourth Proportional to 1,166,003,479.80, 1,749,005,219.88 and 389,649,140.64

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Solution

The fourth proportional to 1,166,003,479.80, 1,749,005,219.88 and 389,649,140.64 is: 584,473,711.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,166,003,479.80 : 1,749,005,219.88 = 389,649,140.64 : x
  2. Step 2: Convert to fraction form
    1,166,003,479.80/1,749,005,219.88 = 389,649,140.64/x
  3. Step 3: Cross multiply
    1,166,003,479.80x = 1,749,005,219.88 × 389,649,140.64
  4. Step 4: Simplify right side
    1,166,003,479.80x = 681,498,380,901,116,288
  5. Step 5: Solve for x
    x = 681,498,380,901,116,288/1,166,003,479.80
  6. Step 6: Final answer
    x = 584,473,711.02

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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.