Home / 28,965,340.80-43,472,505.60-11,938,233.60

Finding the Fourth Proportional to 28,965,340.80, 43,472,505.60 and 11,938,233.60

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Solution

The fourth proportional to 28,965,340.80, 43,472,505.60 and 11,938,233.60 is: 17,917,445.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,965,340.80 : 43,472,505.60 = 11,938,233.60 : x
  2. Step 2: Convert to fraction form
    28,965,340.80/43,472,505.60 = 11,938,233.60/x
  3. Step 3: Cross multiply
    28,965,340.80x = 43,472,505.60 × 11,938,233.60
  4. Step 4: Simplify right side
    28,965,340.80x = 518,984,927,030,108.19
  5. Step 5: Solve for x
    x = 518,984,927,030,108.19/28,965,340.80
  6. Step 6: Final answer
    x = 17,917,445.91

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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.