Home / 618,984,046.40-928,476,069.60-412,359,785.60

Finding the Fourth Proportional to 618,984,046.40, 928,476,069.60 and 412,359,785.60

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Solution

The fourth proportional to 618,984,046.40, 928,476,069.60 and 412,359,785.60 is: 618,539,678.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,984,046.40 : 928,476,069.60 = 412,359,785.60 : x
  2. Step 2: Convert to fraction form
    618,984,046.40/928,476,069.60 = 412,359,785.60/x
  3. Step 3: Cross multiply
    618,984,046.40x = 928,476,069.60 × 412,359,785.60
  4. Step 4: Simplify right side
    618,984,046.40x = 382,866,192,994,986,688
  5. Step 5: Solve for x
    x = 382,866,192,994,986,688/618,984,046.40
  6. Step 6: Final answer
    x = 618,539,678.40

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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.