Home / 839,809,765.80-1,259,714,648.70-409,828,069.80

Finding the Fourth Proportional to 839,809,765.80, 1,259,714,648.70 and 409,828,069.80

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Solution

The fourth proportional to 839,809,765.80, 1,259,714,648.70 and 409,828,069.80 is: 614,742,104.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,809,765.80 : 1,259,714,648.70 = 409,828,069.80 : x
  2. Step 2: Convert to fraction form
    839,809,765.80/1,259,714,648.70 = 409,828,069.80/x
  3. Step 3: Cross multiply
    839,809,765.80x = 1,259,714,648.70 × 409,828,069.80
  4. Step 4: Simplify right side
    839,809,765.80x = 516,266,422,975,506,112
  5. Step 5: Solve for x
    x = 516,266,422,975,506,112/839,809,765.80
  6. Step 6: Final answer
    x = 614,742,104.70

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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.