Home / 679,874,254.40-1,018,467,688.80-372,616,500.80

Finding the Fourth Proportional to 679,874,254.40, 1,018,467,688.80 and 372,616,500.80

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Solution

The fourth proportional to 679,874,254.40, 1,018,467,688.80 and 372,616,500.80 is: 558,188,317.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,874,254.40 : 1,018,467,688.80 = 372,616,500.80 : x
  2. Step 2: Convert to fraction form
    679,874,254.40/1,018,467,688.80 = 372,616,500.80/x
  3. Step 3: Cross multiply
    679,874,254.40x = 1,018,467,688.80 × 372,616,500.80
  4. Step 4: Simplify right side
    679,874,254.40x = 379,497,866,378,519,360
  5. Step 5: Solve for x
    x = 379,497,866,378,519,360/679,874,254.40
  6. Step 6: Final answer
    x = 558,188,317.80

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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.