Home / 879,772,480.20-1,321,068,768.30-699,518,579.40

Finding the Fourth Proportional to 879,772,480.20, 1,321,068,768.30 and 699,518,579.40

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Solution

The fourth proportional to 879,772,480.20, 1,321,068,768.30 and 699,518,579.40 is: 1,050,399,016.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,772,480.20 : 1,321,068,768.30 = 699,518,579.40 : x
  2. Step 2: Convert to fraction form
    879,772,480.20/1,321,068,768.30 = 699,518,579.40/x
  3. Step 3: Cross multiply
    879,772,480.20x = 1,321,068,768.30 × 699,518,579.40
  4. Step 4: Simplify right side
    879,772,480.20x = 924,112,148,090,923,648
  5. Step 5: Solve for x
    x = 924,112,148,090,923,648/879,772,480.20
  6. Step 6: Final answer
    x = 1,050,399,016.66

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1.5x scale

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.