Home / 1,290,230,810.24-1,935,340,674.40-357,550,980.80

Finding the Fourth Proportional to 1,290,230,810.24, 1,935,340,674.40 and 357,550,980.80

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Solution

The fourth proportional to 1,290,230,810.24, 1,935,340,674.40 and 357,550,980.80 is: 536,324,935.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,230,810.24 : 1,935,340,674.40 = 357,550,980.80 : x
  2. Step 2: Convert to fraction form
    1,290,230,810.24/1,935,340,674.40 = 357,550,980.80/x
  3. Step 3: Cross multiply
    1,290,230,810.24x = 1,935,340,674.40 × 357,550,980.80
  4. Step 4: Simplify right side
    1,290,230,810.24x = 691,982,956,313,853,568
  5. Step 5: Solve for x
    x = 691,982,956,313,853,568/1,290,230,810.24
  6. Step 6: Final answer
    x = 536,324,935.68

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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.