Home / 855,129,612.80-1,282,694,419.20-732,685,606.40

Finding the Fourth Proportional to 855,129,612.80, 1,282,694,419.20 and 732,685,606.40

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Solution

The fourth proportional to 855,129,612.80, 1,282,694,419.20 and 732,685,606.40 is: 1,099,028,409.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,129,612.80 : 1,282,694,419.20 = 732,685,606.40 : x
  2. Step 2: Convert to fraction form
    855,129,612.80/1,282,694,419.20 = 732,685,606.40/x
  3. Step 3: Cross multiply
    855,129,612.80x = 1,282,694,419.20 × 732,685,606.40
  4. Step 4: Simplify right side
    855,129,612.80x = 939,811,738,357,447,808
  5. Step 5: Solve for x
    x = 939,811,738,357,447,808/855,129,612.80
  6. Step 6: Final answer
    x = 1,099,028,409.60

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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.