Home / 812,020,208.63-1,218,292,628.69-375,607,170.41

Finding the Fourth Proportional to 812,020,208.63, 1,218,292,628.69 and 375,607,170.41

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Solution

The fourth proportional to 812,020,208.63, 1,218,292,628.69 and 375,607,170.41 is: 563,532,092.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,020,208.63 : 1,218,292,628.69 = 375,607,170.41 : x
  2. Step 2: Convert to fraction form
    812,020,208.63/1,218,292,628.69 = 375,607,170.41/x
  3. Step 3: Cross multiply
    812,020,208.63x = 1,218,292,628.69 × 375,607,170.41
  4. Step 4: Simplify right side
    812,020,208.63x = 457,599,446,988,459,264
  5. Step 5: Solve for x
    x = 457,599,446,988,459,264/812,020,208.63
  6. Step 6: Final answer
    x = 563,532,092.09

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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.