Home / 70,121,334.67-105,177,013.58-21,594,128.36

Finding the Fourth Proportional to 70,121,334.67, 105,177,013.58 and 21,594,128.36

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Solution

The fourth proportional to 70,121,334.67, 105,177,013.58 and 21,594,128.36 is: 32,389,656.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,121,334.67 : 105,177,013.58 = 21,594,128.36 : x
  2. Step 2: Convert to fraction form
    70,121,334.67/105,177,013.58 = 21,594,128.36/x
  3. Step 3: Cross multiply
    70,121,334.67x = 105,177,013.58 × 21,594,128.36
  4. Step 4: Simplify right side
    70,121,334.67x = 2,271,205,931,296,083.50
  5. Step 5: Solve for x
    x = 2,271,205,931,296,083.50/70,121,334.67
  6. Step 6: Final answer
    x = 32,389,656.33

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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.