Home / 812,020,168.54-1,218,292,568.42-375,607,130.20

Finding the Fourth Proportional to 812,020,168.54, 1,218,292,568.42 and 375,607,130.20

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Solution

The fourth proportional to 812,020,168.54, 1,218,292,568.42 and 375,607,130.20 is: 563,532,031.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,020,168.54 : 1,218,292,568.42 = 375,607,130.20 : x
  2. Step 2: Convert to fraction form
    812,020,168.54/1,218,292,568.42 = 375,607,130.20/x
  3. Step 3: Cross multiply
    812,020,168.54x = 1,218,292,568.42 × 375,607,130.20
  4. Step 4: Simplify right side
    812,020,168.54x = 457,599,375,368,223,360
  5. Step 5: Solve for x
    x = 457,599,375,368,223,360/812,020,168.54
  6. Step 6: Final answer
    x = 563,532,031.71

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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.