Home / 766,579,240.80-1,149,868,861.20-213,880,600.80

Finding the Fourth Proportional to 766,579,240.80, 1,149,868,861.20 and 213,880,600.80

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Solution

The fourth proportional to 766,579,240.80, 1,149,868,861.20 and 213,880,600.80 is: 320,820,901.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,579,240.80 : 1,149,868,861.20 = 213,880,600.80 : x
  2. Step 2: Convert to fraction form
    766,579,240.80/1,149,868,861.20 = 213,880,600.80/x
  3. Step 3: Cross multiply
    766,579,240.80x = 1,149,868,861.20 × 213,880,600.80
  4. Step 4: Simplify right side
    766,579,240.80x = 245,934,642,874,667,840
  5. Step 5: Solve for x
    x = 245,934,642,874,667,840/766,579,240.80
  6. Step 6: Final answer
    x = 320,820,901.20

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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.