Home / 812,020,209.63-1,218,292,630.19-375,607,171.41

Finding the Fourth Proportional to 812,020,209.63, 1,218,292,630.19 and 375,607,171.41

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Solution

The fourth proportional to 812,020,209.63, 1,218,292,630.19 and 375,607,171.41 is: 563,532,093.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,020,209.63 : 1,218,292,630.19 = 375,607,171.41 : x
  2. Step 2: Convert to fraction form
    812,020,209.63/1,218,292,630.19 = 375,607,171.41/x
  3. Step 3: Cross multiply
    812,020,209.63x = 1,218,292,630.19 × 375,607,171.41
  4. Step 4: Simplify right side
    812,020,209.63x = 457,599,448,775,315,136
  5. Step 5: Solve for x
    x = 457,599,448,775,315,136/812,020,209.63
  6. Step 6: Final answer
    x = 563,532,093.60

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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.