Home / 857,304,421.60-1,285,956,632.40-311,975,096.80

Finding the Fourth Proportional to 857,304,421.60, 1,285,956,632.40 and 311,975,096.80

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Solution

The fourth proportional to 857,304,421.60, 1,285,956,632.40 and 311,975,096.80 is: 467,962,645.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,304,421.60 : 1,285,956,632.40 = 311,975,096.80 : x
  2. Step 2: Convert to fraction form
    857,304,421.60/1,285,956,632.40 = 311,975,096.80/x
  3. Step 3: Cross multiply
    857,304,421.60x = 1,285,956,632.40 × 311,975,096.80
  4. Step 4: Simplify right side
    857,304,421.60x = 401,186,444,873,592,064
  5. Step 5: Solve for x
    x = 401,186,444,873,592,064/857,304,421.60
  6. Step 6: Final answer
    x = 467,962,645.20

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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.