Home / 857,304,401.60-1,285,956,602.40-311,975,076.80

Finding the Fourth Proportional to 857,304,401.60, 1,285,956,602.40 and 311,975,076.80

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Solution

The fourth proportional to 857,304,401.60, 1,285,956,602.40 and 311,975,076.80 is: 467,962,615.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,304,401.60 : 1,285,956,602.40 = 311,975,076.80 : x
  2. Step 2: Convert to fraction form
    857,304,401.60/1,285,956,602.40 = 311,975,076.80/x
  3. Step 3: Cross multiply
    857,304,401.60x = 1,285,956,602.40 × 311,975,076.80
  4. Step 4: Simplify right side
    857,304,401.60x = 401,186,409,795,207,104
  5. Step 5: Solve for x
    x = 401,186,409,795,207,104/857,304,401.60
  6. Step 6: Final answer
    x = 467,962,615.20

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1.5x scale

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.