Home / 279,958,856.40-419,938,284.60-239,144,187.60

Finding the Fourth Proportional to 279,958,856.40, 419,938,284.60 and 239,144,187.60

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Solution

The fourth proportional to 279,958,856.40, 419,938,284.60 and 239,144,187.60 is: 358,716,281.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,958,856.40 : 419,938,284.60 = 239,144,187.60 : x
  2. Step 2: Convert to fraction form
    279,958,856.40/419,938,284.60 = 239,144,187.60/x
  3. Step 3: Cross multiply
    279,958,856.40x = 419,938,284.60 × 239,144,187.60
  4. Step 4: Simplify right side
    279,958,856.40x = 100,425,799,912,804,592
  5. Step 5: Solve for x
    x = 100,425,799,912,804,592/279,958,856.40
  6. Step 6: Final answer
    x = 358,716,281.40

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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.