Home / 389,198,328,360.48-583,584,671,799.36-309,038,951,181.60

Finding the Fourth Proportional to 389,198,328,360.48, 583,584,671,799.36 and 309,038,951,181.60

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Solution

The fourth proportional to 389,198,328,360.48, 583,584,671,799.36 and 309,038,951,181.60 is: 463,389,438,639.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,198,328,360.48 : 583,584,671,799.36 = 309,038,951,181.60 : x
  2. Step 2: Convert to fraction form
    389,198,328,360.48/583,584,671,799.36 = 309,038,951,181.60/x
  3. Step 3: Cross multiply
    389,198,328,360.48x = 583,584,671,799.36 × 309,038,951,181.60
  4. Step 4: Simplify right side
    389,198,328,360.48x = 180,350,394,898,532,446,240,768
  5. Step 5: Solve for x
    x = 180,350,394,898,532,446,240,768/389,198,328,360.48
  6. Step 6: Final answer
    x = 463,389,438,639.85

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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.