Home / 28,489,893-39,316,086.90-15,437,141.82

Finding the Fourth Proportional to 28,489,893, 39,316,086.90 and 15,437,141.82

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Solution

The fourth proportional to 28,489,893, 39,316,086.90 and 15,437,141.82 is: 21,303,274.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,489,893 : 39,316,086.90 = 15,437,141.82 : x
  2. Step 2: Convert to fraction form
    28,489,893/39,316,086.90 = 15,437,141.82/x
  3. Step 3: Cross multiply
    28,489,893x = 39,316,086.90 × 15,437,141.82
  4. Step 4: Simplify right side
    28,489,893x = 606,928,009,282,744.12
  5. Step 5: Solve for x
    x = 606,928,009,282,744.12/28,489,893
  6. Step 6: Final answer
    x = 21,303,274.44

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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.