Home / 990,302,256.80-1,485,453,385.20-531,137,232.80

Finding the Fourth Proportional to 990,302,256.80, 1,485,453,385.20 and 531,137,232.80

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Solution

The fourth proportional to 990,302,256.80, 1,485,453,385.20 and 531,137,232.80 is: 796,705,849.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,302,256.80 : 1,485,453,385.20 = 531,137,232.80 : x
  2. Step 2: Convert to fraction form
    990,302,256.80/1,485,453,385.20 = 531,137,232.80/x
  3. Step 3: Cross multiply
    990,302,256.80x = 1,485,453,385.20 × 531,137,232.80
  4. Step 4: Simplify right side
    990,302,256.80x = 788,979,600,468,520,576
  5. Step 5: Solve for x
    x = 788,979,600,468,520,576/990,302,256.80
  6. Step 6: Final answer
    x = 796,705,849.20

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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.