Home / 13,021,471.60-17,970,438.53-7,220,253.32

Finding the Fourth Proportional to 13,021,471.60, 17,970,438.53 and 7,220,253.32

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Solution

The fourth proportional to 13,021,471.60, 17,970,438.53 and 7,220,253.32 is: 9,964,397.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,021,471.60 : 17,970,438.53 = 7,220,253.32 : x
  2. Step 2: Convert to fraction form
    13,021,471.60/17,970,438.53 = 7,220,253.32/x
  3. Step 3: Cross multiply
    13,021,471.60x = 17,970,438.53 × 7,220,253.32
  4. Step 4: Simplify right side
    13,021,471.60x = 129,751,118,458,088.44
  5. Step 5: Solve for x
    x = 129,751,118,458,088.44/13,021,471.60
  6. Step 6: Final answer
    x = 9,964,397.45

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1.5x scale

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.