Home / 839,809,719.80-1,259,714,579.70-409,828,023.80

Finding the Fourth Proportional to 839,809,719.80, 1,259,714,579.70 and 409,828,023.80

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Solution

The fourth proportional to 839,809,719.80, 1,259,714,579.70 and 409,828,023.80 is: 614,742,035.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,809,719.80 : 1,259,714,579.70 = 409,828,023.80 : x
  2. Step 2: Convert to fraction form
    839,809,719.80/1,259,714,579.70 = 409,828,023.80/x
  3. Step 3: Cross multiply
    839,809,719.80x = 1,259,714,579.70 × 409,828,023.80
  4. Step 4: Simplify right side
    839,809,719.80x = 516,266,336,750,498,624
  5. Step 5: Solve for x
    x = 516,266,336,750,498,624/839,809,719.80
  6. Step 6: Final answer
    x = 614,742,035.70

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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.