Home / 839,809,968.30-1,259,714,952.45-409,828,272.30

Finding the Fourth Proportional to 839,809,968.30, 1,259,714,952.45 and 409,828,272.30

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Solution

The fourth proportional to 839,809,968.30, 1,259,714,952.45 and 409,828,272.30 is: 614,742,408.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,809,968.30 : 1,259,714,952.45 = 409,828,272.30 : x
  2. Step 2: Convert to fraction form
    839,809,968.30/1,259,714,952.45 = 409,828,272.30/x
  3. Step 3: Cross multiply
    839,809,968.30x = 1,259,714,952.45 × 409,828,272.30
  4. Step 4: Simplify right side
    839,809,968.30x = 516,266,802,553,060,160
  5. Step 5: Solve for x
    x = 516,266,802,553,060,160/839,809,968.30
  6. Step 6: Final answer
    x = 614,742,408.45

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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.