Home / 686,872,320-1,030,177,059.04-266,693,701.12

Finding the Fourth Proportional to 686,872,320, 1,030,177,059.04 and 266,693,701.12

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Solution

The fourth proportional to 686,872,320, 1,030,177,059.04 and 266,693,701.12 is: 399,989,524.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,872,320 : 1,030,177,059.04 = 266,693,701.12 : x
  2. Step 2: Convert to fraction form
    686,872,320/1,030,177,059.04 = 266,693,701.12/x
  3. Step 3: Cross multiply
    686,872,320x = 1,030,177,059.04 × 266,693,701.12
  4. Step 4: Simplify right side
    686,872,320x = 274,741,732,684,294,336
  5. Step 5: Solve for x
    x = 274,741,732,684,294,336/686,872,320
  6. Step 6: Final answer
    x = 399,989,524.52

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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.