Home / 15,769,971.71-21,762,434.40-9,155,173.94

Finding the Fourth Proportional to 15,769,971.71, 21,762,434.40 and 9,155,173.94

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Solution

The fourth proportional to 15,769,971.71, 21,762,434.40 and 9,155,173.94 is: 12,634,066.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,769,971.71 : 21,762,434.40 = 9,155,173.94 : x
  2. Step 2: Convert to fraction form
    15,769,971.71/21,762,434.40 = 9,155,173.94/x
  3. Step 3: Cross multiply
    15,769,971.71x = 21,762,434.40 × 9,155,173.94
  4. Step 4: Simplify right side
    15,769,971.71x = 199,238,872,228,304.59
  5. Step 5: Solve for x
    x = 199,238,872,228,304.59/15,769,971.71
  6. Step 6: Final answer
    x = 12,634,066.56

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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.