Home / 13,507,081.83-18,639,751.50-7,312,126.86

Finding the Fourth Proportional to 13,507,081.83, 18,639,751.50 and 7,312,126.86

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Solution

The fourth proportional to 13,507,081.83, 18,639,751.50 and 7,312,126.86 is: 10,090,723.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,507,081.83 : 18,639,751.50 = 7,312,126.86 : x
  2. Step 2: Convert to fraction form
    13,507,081.83/18,639,751.50 = 7,312,126.86/x
  3. Step 3: Cross multiply
    13,507,081.83x = 18,639,751.50 × 7,312,126.86
  4. Step 4: Simplify right side
    13,507,081.83x = 136,296,227,606,875.30
  5. Step 5: Solve for x
    x = 136,296,227,606,875.30/13,507,081.83
  6. Step 6: Final answer
    x = 10,090,723.47

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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.