Home / 879,648,959.44-1,213,882,305.60-488,533,577.68

Finding the Fourth Proportional to 879,648,959.44, 1,213,882,305.60 and 488,533,577.68

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Solution

The fourth proportional to 879,648,959.44, 1,213,882,305.60 and 488,533,577.68 is: 674,157,866.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,648,959.44 : 1,213,882,305.60 = 488,533,577.68 : x
  2. Step 2: Convert to fraction form
    879,648,959.44/1,213,882,305.60 = 488,533,577.68/x
  3. Step 3: Cross multiply
    879,648,959.44x = 1,213,882,305.60 × 488,533,577.68
  4. Step 4: Simplify right side
    879,648,959.44x = 593,022,265,637,215,104
  5. Step 5: Solve for x
    x = 593,022,265,637,215,104/879,648,959.44
  6. Step 6: Final answer
    x = 674,157,866.35

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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.