Home / 522,030,144.42-720,420,540.81-299,054,920.38

Finding the Fourth Proportional to 522,030,144.42, 720,420,540.81 and 299,054,920.38

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Solution

The fourth proportional to 522,030,144.42, 720,420,540.81 and 299,054,920.38 is: 412,706,641.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,030,144.42 : 720,420,540.81 = 299,054,920.38 : x
  2. Step 2: Convert to fraction form
    522,030,144.42/720,420,540.81 = 299,054,920.38/x
  3. Step 3: Cross multiply
    522,030,144.42x = 720,420,540.81 × 299,054,920.38
  4. Step 4: Simplify right side
    522,030,144.42x = 215,445,307,472,051,072
  5. Step 5: Solve for x
    x = 215,445,307,472,051,072/522,030,144.42
  6. Step 6: Final answer
    x = 412,706,641.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.