Home / 20,735,078.36-28,615,095.40-11,316,385.10

Finding the Fourth Proportional to 20,735,078.36, 28,615,095.40 and 11,316,385.10

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Solution

The fourth proportional to 20,735,078.36, 28,615,095.40 and 11,316,385.10 is: 15,616,986.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,735,078.36 : 28,615,095.40 = 11,316,385.10 : x
  2. Step 2: Convert to fraction form
    20,735,078.36/28,615,095.40 = 11,316,385.10/x
  3. Step 3: Cross multiply
    20,735,078.36x = 28,615,095.40 × 11,316,385.10
  4. Step 4: Simplify right side
    20,735,078.36x = 323,819,439,219,638.50
  5. Step 5: Solve for x
    x = 323,819,439,219,638.50/20,735,078.36
  6. Step 6: Final answer
    x = 15,616,986.52

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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.