Home / 858,624,009.60-1,287,936,014.40-798,157,833.60

Finding the Fourth Proportional to 858,624,009.60, 1,287,936,014.40 and 798,157,833.60

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Solution

The fourth proportional to 858,624,009.60, 1,287,936,014.40 and 798,157,833.60 is: 1,197,236,750.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,624,009.60 : 1,287,936,014.40 = 798,157,833.60 : x
  2. Step 2: Convert to fraction form
    858,624,009.60/1,287,936,014.40 = 798,157,833.60/x
  3. Step 3: Cross multiply
    858,624,009.60x = 1,287,936,014.40 × 798,157,833.60
  4. Step 4: Simplify right side
    858,624,009.60x = 1,027,976,219,068,922,496
  5. Step 5: Solve for x
    x = 1,027,976,219,068,922,496/858,624,009.60
  6. Step 6: Final answer
    x = 1,197,236,750.40

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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.