Home / 679,954,008.40-1,019,931,012.60-543,905,112.40

Finding the Fourth Proportional to 679,954,008.40, 1,019,931,012.60 and 543,905,112.40

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Solution

The fourth proportional to 679,954,008.40, 1,019,931,012.60 and 543,905,112.40 is: 815,857,668.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,954,008.40 : 1,019,931,012.60 = 543,905,112.40 : x
  2. Step 2: Convert to fraction form
    679,954,008.40/1,019,931,012.60 = 543,905,112.40/x
  3. Step 3: Cross multiply
    679,954,008.40x = 1,019,931,012.60 × 543,905,112.40
  4. Step 4: Simplify right side
    679,954,008.40x = 554,745,692,048,448,832
  5. Step 5: Solve for x
    x = 554,745,692,048,448,832/679,954,008.40
  6. Step 6: Final answer
    x = 815,857,668.60

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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.