Home / 578,345,673.80-867,512,981.10-141,648,278.60

Finding the Fourth Proportional to 578,345,673.80, 867,512,981.10 and 141,648,278.60

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Solution

The fourth proportional to 578,345,673.80, 867,512,981.10 and 141,648,278.60 is: 212,471,063.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,345,673.80 : 867,512,981.10 = 141,648,278.60 : x
  2. Step 2: Convert to fraction form
    578,345,673.80/867,512,981.10 = 141,648,278.60/x
  3. Step 3: Cross multiply
    578,345,673.80x = 867,512,981.10 × 141,648,278.60
  4. Step 4: Simplify right side
    578,345,673.80x = 122,881,720,435,969,328
  5. Step 5: Solve for x
    x = 122,881,720,435,969,328/578,345,673.80
  6. Step 6: Final answer
    x = 212,471,063.59

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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.