Home / 1,235,409,279.20-1,853,112,864.72-315,285,544.16

Finding the Fourth Proportional to 1,235,409,279.20, 1,853,112,864.72 and 315,285,544.16

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Solution

The fourth proportional to 1,235,409,279.20, 1,853,112,864.72 and 315,285,544.16 is: 472,928,047.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,235,409,279.20 : 1,853,112,864.72 = 315,285,544.16 : x
  2. Step 2: Convert to fraction form
    1,235,409,279.20/1,853,112,864.72 = 315,285,544.16/x
  3. Step 3: Cross multiply
    1,235,409,279.20x = 1,853,112,864.72 × 315,285,544.16
  4. Step 4: Simplify right side
    1,235,409,279.20x = 584,259,697,943,141,760
  5. Step 5: Solve for x
    x = 584,259,697,943,141,760/1,235,409,279.20
  6. Step 6: Final answer
    x = 472,928,047.23

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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.