Home / 989,313,860.35-1,484,258,003.16-398,799,352.59

Finding the Fourth Proportional to 989,313,860.35, 1,484,258,003.16 and 398,799,352.59

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Solution

The fourth proportional to 989,313,860.35, 1,484,258,003.16 and 398,799,352.59 is: 598,314,806.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,313,860.35 : 1,484,258,003.16 = 398,799,352.59 : x
  2. Step 2: Convert to fraction form
    989,313,860.35/1,484,258,003.16 = 398,799,352.59/x
  3. Step 3: Cross multiply
    989,313,860.35x = 1,484,258,003.16 × 398,799,352.59
  4. Step 4: Simplify right side
    989,313,860.35x = 591,921,130,736,734,208
  5. Step 5: Solve for x
    x = 591,921,130,736,734,208/989,313,860.35
  6. Step 6: Final answer
    x = 598,314,806.31

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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.