Home / 553,431,541.26-763,740,608.75-315,273,196.05

Finding the Fourth Proportional to 553,431,541.26, 763,740,608.75 and 315,273,196.05

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Solution

The fourth proportional to 553,431,541.26, 763,740,608.75 and 315,273,196.05 is: 435,079,905.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,431,541.26 : 763,740,608.75 = 315,273,196.05 : x
  2. Step 2: Convert to fraction form
    553,431,541.26/763,740,608.75 = 315,273,196.05/x
  3. Step 3: Cross multiply
    553,431,541.26x = 763,740,608.75 × 315,273,196.05
  4. Step 4: Simplify right side
    553,431,541.26x = 240,786,942,678,738,464
  5. Step 5: Solve for x
    x = 240,786,942,678,738,464/553,431,541.26
  6. Step 6: Final answer
    x = 435,079,905.51

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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.