Home / 278,992,316,258.62-418,148,489,009.82-144,612,721,623.05

Finding the Fourth Proportional to 278,992,316,258.62, 418,148,489,009.82 and 144,612,721,623.05

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Solution

The fourth proportional to 278,992,316,258.62, 418,148,489,009.82 and 144,612,721,623.05 is: 216,742,854,603.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,992,316,258.62 : 418,148,489,009.82 = 144,612,721,623.05 : x
  2. Step 2: Convert to fraction form
    278,992,316,258.62/418,148,489,009.82 = 144,612,721,623.05/x
  3. Step 3: Cross multiply
    278,992,316,258.62x = 418,148,489,009.82 × 144,612,721,623.05
  4. Step 4: Simplify right side
    278,992,316,258.62x = 60,469,591,038,276,078,141,440
  5. Step 5: Solve for x
    x = 60,469,591,038,276,078,141,440/278,992,316,258.62
  6. Step 6: Final answer
    x = 216,742,854,603.29

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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.