Home / 687,836,038,319.05-949,216,599,947.34-379,180,616,645.29

Finding the Fourth Proportional to 687,836,038,319.05, 949,216,599,947.34 and 379,180,616,645.29

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Solution

The fourth proportional to 687,836,038,319.05, 949,216,599,947.34 and 379,180,616,645.29 is: 523,270,831,487.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,836,038,319.05 : 949,216,599,947.34 = 379,180,616,645.29 : x
  2. Step 2: Convert to fraction form
    687,836,038,319.05/949,216,599,947.34 = 379,180,616,645.29/x
  3. Step 3: Cross multiply
    687,836,038,319.05x = 949,216,599,947.34 × 379,180,616,645.29
  4. Step 4: Simplify right side
    687,836,038,319.05x = 359,924,535,697,977,917,833,216
  5. Step 5: Solve for x
    x = 359,924,535,697,977,917,833,216/687,836,038,319.05
  6. Step 6: Final answer
    x = 523,270,831,487.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.