Home / 280,781,366.63-438,170,051.81

Finding the Third Proportional to 280,781,366.63 and 438,170,051.81

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Solution

The third proportional to 280,781,366.63 and 438,170,051.81 is: 683,781,109.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,781,366.63 : 438,170,051.81 = 438,170,051.81 : x
  2. Step 2: Convert to fraction form
    280,781,366.63/438,170,051.81 = 438,170,051.81/x
  3. Step 3: Cross multiply
    280,781,366.63x = 438,170,051.81 × 438,170,051.81
  4. Step 4: Simplify right side
    280,781,366.63x = 191,992,994,305,368,928
  5. Step 5: Solve for x
    x = 191,992,994,305,368,928/280,781,366.63
  6. Step 6: Final answer
    x = 683,781,109.17

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.