Home / 878,941,895.76-1,212,941,144.79-477,055,788.60

Finding the Fourth Proportional to 878,941,895.76, 1,212,941,144.79 and 477,055,788.60

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Solution

The fourth proportional to 878,941,895.76, 1,212,941,144.79 and 477,055,788.60 is: 658,337,709.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,941,895.76 : 1,212,941,144.79 = 477,055,788.60 : x
  2. Step 2: Convert to fraction form
    878,941,895.76/1,212,941,144.79 = 477,055,788.60/x
  3. Step 3: Cross multiply
    878,941,895.76x = 1,212,941,144.79 × 477,055,788.60
  4. Step 4: Simplify right side
    878,941,895.76x = 578,640,594,353,180,288
  5. Step 5: Solve for x
    x = 578,640,594,353,180,288/878,941,895.76
  6. Step 6: Final answer
    x = 658,337,709.40

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1.5x scale

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.