Home / 78,724,056.50-108,660,806.16-45,694,946.60

Finding the Fourth Proportional to 78,724,056.50, 108,660,806.16 and 45,694,946.60

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Solution

The fourth proportional to 78,724,056.50, 108,660,806.16 and 45,694,946.60 is: 63,071,568.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,724,056.50 : 108,660,806.16 = 45,694,946.60 : x
  2. Step 2: Convert to fraction form
    78,724,056.50/108,660,806.16 = 45,694,946.60/x
  3. Step 3: Cross multiply
    78,724,056.50x = 108,660,806.16 × 45,694,946.60
  4. Step 4: Simplify right side
    78,724,056.50x = 4,965,249,734,994,151
  5. Step 5: Solve for x
    x = 4,965,249,734,994,151/78,724,056.50
  6. Step 6: Final answer
    x = 63,071,568.66

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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.