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Finding the Third Proportional to 55,778,869 and 121,435,080.50

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Solution

The third proportional to 55,778,869 and 121,435,080.50 is: 264,373,929.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,778,869 : 121,435,080.50 = 121,435,080.50 : x
  2. Step 2: Convert to fraction form
    55,778,869/121,435,080.50 = 121,435,080.50/x
  3. Step 3: Cross multiply
    55,778,869x = 121,435,080.50 × 121,435,080.50
  4. Step 4: Simplify right side
    55,778,869x = 14,746,478,776,041,480
  5. Step 5: Solve for x
    x = 14,746,478,776,041,480/55,778,869
  6. Step 6: Final answer
    x = 264,373,929.42

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.