Home / 1,590,410,011.20-2,385,615,016.80-426,058,209.60

Finding the Fourth Proportional to 1,590,410,011.20, 2,385,615,016.80 and 426,058,209.60

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Solution

The fourth proportional to 1,590,410,011.20, 2,385,615,016.80 and 426,058,209.60 is: 639,087,314.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,590,410,011.20 : 2,385,615,016.80 = 426,058,209.60 : x
  2. Step 2: Convert to fraction form
    1,590,410,011.20/2,385,615,016.80 = 426,058,209.60/x
  3. Step 3: Cross multiply
    1,590,410,011.20x = 2,385,615,016.80 × 426,058,209.60
  4. Step 4: Simplify right side
    1,590,410,011.20x = 1,016,410,862,852,682,112
  5. Step 5: Solve for x
    x = 1,016,410,862,852,682,112/1,590,410,011.20
  6. Step 6: Final answer
    x = 639,087,314.40

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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.