Home / 72,583,280.40-108,874,920.60-64,647,094.80

Finding the Fourth Proportional to 72,583,280.40, 108,874,920.60 and 64,647,094.80

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Solution

The fourth proportional to 72,583,280.40, 108,874,920.60 and 64,647,094.80 is: 96,970,642.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,583,280.40 : 108,874,920.60 = 64,647,094.80 : x
  2. Step 2: Convert to fraction form
    72,583,280.40/108,874,920.60 = 64,647,094.80/x
  3. Step 3: Cross multiply
    72,583,280.40x = 108,874,920.60 × 64,647,094.80
  4. Step 4: Simplify right side
    72,583,280.40x = 7,038,447,313,370,672
  5. Step 5: Solve for x
    x = 7,038,447,313,370,672/72,583,280.40
  6. Step 6: Final answer
    x = 96,970,642.20

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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.