Home / 20,915,117.34-28,862,233.92-11,622,656.40

Finding the Fourth Proportional to 20,915,117.34, 28,862,233.92 and 11,622,656.40

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Solution

The fourth proportional to 20,915,117.34, 28,862,233.92 and 11,622,656.40 is: 16,038,916.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,915,117.34 : 28,862,233.92 = 11,622,656.40 : x
  2. Step 2: Convert to fraction form
    20,915,117.34/28,862,233.92 = 11,622,656.40/x
  3. Step 3: Cross multiply
    20,915,117.34x = 28,862,233.92 × 11,622,656.40
  4. Step 4: Simplify right side
    20,915,117.34x = 335,455,827,788,585.12
  5. Step 5: Solve for x
    x = 335,455,827,788,585.12/20,915,117.34
  6. Step 6: Final answer
    x = 16,038,916.84

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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.