Home / 715,392,002.40-1,073,088,003.60-520,388,584.80

Finding the Fourth Proportional to 715,392,002.40, 1,073,088,003.60 and 520,388,584.80

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Solution

The fourth proportional to 715,392,002.40, 1,073,088,003.60 and 520,388,584.80 is: 780,582,877.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,392,002.40 : 1,073,088,003.60 = 520,388,584.80 : x
  2. Step 2: Convert to fraction form
    715,392,002.40/1,073,088,003.60 = 520,388,584.80/x
  3. Step 3: Cross multiply
    715,392,002.40x = 1,073,088,003.60 × 520,388,584.80
  4. Step 4: Simplify right side
    715,392,002.40x = 558,422,747,559,261,312
  5. Step 5: Solve for x
    x = 558,422,747,559,261,312/715,392,002.40
  6. Step 6: Final answer
    x = 780,582,877.20

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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.