Home / 839,808,705.20-1,259,713,057.80-531,431,207.60

Finding the Fourth Proportional to 839,808,705.20, 1,259,713,057.80 and 531,431,207.60

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Solution

The fourth proportional to 839,808,705.20, 1,259,713,057.80 and 531,431,207.60 is: 797,146,811.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,808,705.20 : 1,259,713,057.80 = 531,431,207.60 : x
  2. Step 2: Convert to fraction form
    839,808,705.20/1,259,713,057.80 = 531,431,207.60/x
  3. Step 3: Cross multiply
    839,808,705.20x = 1,259,713,057.80 × 531,431,207.60
  4. Step 4: Simplify right side
    839,808,705.20x = 669,450,831,536,142,592
  5. Step 5: Solve for x
    x = 669,450,831,536,142,592/839,808,705.20
  6. Step 6: Final answer
    x = 797,146,811.40

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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.