Home / 21,406,089.20-29,540,421.95-11,616,533.18

Finding the Fourth Proportional to 21,406,089.20, 29,540,421.95 and 11,616,533.18

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Solution

The fourth proportional to 21,406,089.20, 29,540,421.95 and 11,616,533.18 is: 16,030,826.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,406,089.20 : 29,540,421.95 = 11,616,533.18 : x
  2. Step 2: Convert to fraction form
    21,406,089.20/29,540,421.95 = 11,616,533.18/x
  3. Step 3: Cross multiply
    21,406,089.20x = 29,540,421.95 × 11,616,533.18
  4. Step 4: Simplify right side
    21,406,089.20x = 343,157,291,749,143.69
  5. Step 5: Solve for x
    x = 343,157,291,749,143.69/21,406,089.20
  6. Step 6: Final answer
    x = 16,030,826.02

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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.