Home / 858,276,002.60-1,287,414,003.90-212,043,746.60

Finding the Fourth Proportional to 858,276,002.60, 1,287,414,003.90 and 212,043,746.60

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Solution

The fourth proportional to 858,276,002.60, 1,287,414,003.90 and 212,043,746.60 is: 318,065,619.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,276,002.60 : 1,287,414,003.90 = 212,043,746.60 : x
  2. Step 2: Convert to fraction form
    858,276,002.60/1,287,414,003.90 = 212,043,746.60/x
  3. Step 3: Cross multiply
    858,276,002.60x = 1,287,414,003.90 × 212,043,746.60
  4. Step 4: Simplify right side
    858,276,002.60x = 272,988,088,812,263,040
  5. Step 5: Solve for x
    x = 272,988,088,812,263,040/858,276,002.60
  6. Step 6: Final answer
    x = 318,065,619.90

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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.