Home / 445,963,204.20-668,307,077.10-309,489,155.40

Finding the Fourth Proportional to 445,963,204.20, 668,307,077.10 and 309,489,155.40

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Solution

The fourth proportional to 445,963,204.20, 668,307,077.10 and 309,489,155.40 is: 463,791,162.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,963,204.20 : 668,307,077.10 = 309,489,155.40 : x
  2. Step 2: Convert to fraction form
    445,963,204.20/668,307,077.10 = 309,489,155.40/x
  3. Step 3: Cross multiply
    445,963,204.20x = 668,307,077.10 × 309,489,155.40
  4. Step 4: Simplify right side
    445,963,204.20x = 206,833,792,839,521,664
  5. Step 5: Solve for x
    x = 206,833,792,839,521,664/445,963,204.20
  6. Step 6: Final answer
    x = 463,791,162.35

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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.