Home / 879,433,627.60-1,320,452,143.80-492,030,197.20

Finding the Fourth Proportional to 879,433,627.60, 1,320,452,143.80 and 492,030,197.20

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Solution

The fourth proportional to 879,433,627.60, 1,320,452,143.80 and 492,030,197.20 is: 738,773,579.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,433,627.60 : 1,320,452,143.80 = 492,030,197.20 : x
  2. Step 2: Convert to fraction form
    879,433,627.60/1,320,452,143.80 = 492,030,197.20/x
  3. Step 3: Cross multiply
    879,433,627.60x = 1,320,452,143.80 × 492,030,197.20
  4. Step 4: Simplify right side
    879,433,627.60x = 649,702,328,707,076,736
  5. Step 5: Solve for x
    x = 649,702,328,707,076,736/879,433,627.60
  6. Step 6: Final answer
    x = 738,773,579.17

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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.