Home / 20,554,326.23-28,362,681.70-11,384,672.63

Finding the Fourth Proportional to 20,554,326.23, 28,362,681.70 and 11,384,672.63

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Solution

The fourth proportional to 20,554,326.23, 28,362,681.70 and 11,384,672.63 is: 15,709,580.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,554,326.23 : 28,362,681.70 = 11,384,672.63 : x
  2. Step 2: Convert to fraction form
    20,554,326.23/28,362,681.70 = 11,384,672.63/x
  3. Step 3: Cross multiply
    20,554,326.23x = 28,362,681.70 × 11,384,672.63
  4. Step 4: Simplify right side
    20,554,326.23x = 322,899,845,893,116.81
  5. Step 5: Solve for x
    x = 322,899,845,893,116.81/20,554,326.23
  6. Step 6: Final answer
    x = 15,709,580.67

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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.