Home / 679,938,862.20-1,019,908,293.30-219,923,532.60

Finding the Fourth Proportional to 679,938,862.20, 1,019,908,293.30 and 219,923,532.60

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Solution

The fourth proportional to 679,938,862.20, 1,019,908,293.30 and 219,923,532.60 is: 329,885,298.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,938,862.20 : 1,019,908,293.30 = 219,923,532.60 : x
  2. Step 2: Convert to fraction form
    679,938,862.20/1,019,908,293.30 = 219,923,532.60/x
  3. Step 3: Cross multiply
    679,938,862.20x = 1,019,908,293.30 × 219,923,532.60
  4. Step 4: Simplify right side
    679,938,862.20x = 224,301,834,790,572,896
  5. Step 5: Solve for x
    x = 224,301,834,790,572,896/679,938,862.20
  6. Step 6: Final answer
    x = 329,885,298.90

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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.