Home / 403,590,413.10-556,954,764.99-217,951,412.40

Finding the Fourth Proportional to 403,590,413.10, 556,954,764.99 and 217,951,412.40

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Solution

The fourth proportional to 403,590,413.10, 556,954,764.99 and 217,951,412.40 is: 300,772,946.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,590,413.10 : 556,954,764.99 = 217,951,412.40 : x
  2. Step 2: Convert to fraction form
    403,590,413.10/556,954,764.99 = 217,951,412.40/x
  3. Step 3: Cross multiply
    403,590,413.10x = 556,954,764.99 × 217,951,412.40
  4. Step 4: Simplify right side
    403,590,413.10x = 121,389,077,672,480,576
  5. Step 5: Solve for x
    x = 121,389,077,672,480,576/403,590,413.10
  6. Step 6: Final answer
    x = 300,772,946.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.