Home / 858,477,630.30-1,287,716,445.45-720,728,123.10

Finding the Fourth Proportional to 858,477,630.30, 1,287,716,445.45 and 720,728,123.10

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Solution

The fourth proportional to 858,477,630.30, 1,287,716,445.45 and 720,728,123.10 is: 1,081,092,184.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,477,630.30 : 1,287,716,445.45 = 720,728,123.10 : x
  2. Step 2: Convert to fraction form
    858,477,630.30/1,287,716,445.45 = 720,728,123.10/x
  3. Step 3: Cross multiply
    858,477,630.30x = 1,287,716,445.45 × 720,728,123.10
  4. Step 4: Simplify right side
    858,477,630.30x = 928,093,456,814,182,144
  5. Step 5: Solve for x
    x = 928,093,456,814,182,144/858,477,630.30
  6. Step 6: Final answer
    x = 1,081,092,184.65

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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.