Home / 28,565,685.11-39,432,707.79-19,285,820.35

Finding the Fourth Proportional to 28,565,685.11, 39,432,707.79 and 19,285,820.35

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Solution

The fourth proportional to 28,565,685.11, 39,432,707.79 and 19,285,820.35 is: 26,622,575.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,565,685.11 : 39,432,707.79 = 19,285,820.35 : x
  2. Step 2: Convert to fraction form
    28,565,685.11/39,432,707.79 = 19,285,820.35/x
  3. Step 3: Cross multiply
    28,565,685.11x = 39,432,707.79 × 19,285,820.35
  4. Step 4: Simplify right side
    28,565,685.11x = 760,492,118,181,082
  5. Step 5: Solve for x
    x = 760,492,118,181,082/28,565,685.11
  6. Step 6: Final answer
    x = 26,622,575.83

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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.