Home / 852,090,019.60-1,278,135,029.40-545,980,003.60

Finding the Fourth Proportional to 852,090,019.60, 1,278,135,029.40 and 545,980,003.60

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Solution

The fourth proportional to 852,090,019.60, 1,278,135,029.40 and 545,980,003.60 is: 818,970,005.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,090,019.60 : 1,278,135,029.40 = 545,980,003.60 : x
  2. Step 2: Convert to fraction form
    852,090,019.60/1,278,135,029.40 = 545,980,003.60/x
  3. Step 3: Cross multiply
    852,090,019.60x = 1,278,135,029.40 × 545,980,003.60
  4. Step 4: Simplify right side
    852,090,019.60x = 697,836,167,953,098,240
  5. Step 5: Solve for x
    x = 697,836,167,953,098,240/852,090,019.60
  6. Step 6: Final answer
    x = 818,970,005.40

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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.