Home / 13,345,381-18,366,980.88-11,003,541.40

Finding the Fourth Proportional to 13,345,381, 18,366,980.88 and 11,003,541.40

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Solution

The fourth proportional to 13,345,381, 18,366,980.88 and 11,003,541.40 is: 15,143,953.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,345,381 : 18,366,980.88 = 11,003,541.40 : x
  2. Step 2: Convert to fraction form
    13,345,381/18,366,980.88 = 11,003,541.40/x
  3. Step 3: Cross multiply
    13,345,381x = 18,366,980.88 × 11,003,541.40
  4. Step 4: Simplify right side
    13,345,381x = 202,101,834,506,088.44
  5. Step 5: Solve for x
    x = 202,101,834,506,088.44/13,345,381
  6. Step 6: Final answer
    x = 15,143,953.89

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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.