Home / 28,539,896.64-42,809,410.08-19,778,089.92

Finding the Fourth Proportional to 28,539,896.64, 42,809,410.08 and 19,778,089.92

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Solution

The fourth proportional to 28,539,896.64, 42,809,410.08 and 19,778,089.92 is: 29,666,833.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,539,896.64 : 42,809,410.08 = 19,778,089.92 : x
  2. Step 2: Convert to fraction form
    28,539,896.64/42,809,410.08 = 19,778,089.92/x
  3. Step 3: Cross multiply
    28,539,896.64x = 42,809,410.08 × 19,778,089.92
  4. Step 4: Simplify right side
    28,539,896.64x = 846,688,361,984,394.38
  5. Step 5: Solve for x
    x = 846,688,361,984,394.38/28,539,896.64
  6. Step 6: Final answer
    x = 29,666,833.51

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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.