Home / 13,117,890.52-18,102,720.95-7,317,047.98

Finding the Fourth Proportional to 13,117,890.52, 18,102,720.95 and 7,317,047.98

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Solution

The fourth proportional to 13,117,890.52, 18,102,720.95 and 7,317,047.98 is: 10,097,544.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,117,890.52 : 18,102,720.95 = 7,317,047.98 : x
  2. Step 2: Convert to fraction form
    13,117,890.52/18,102,720.95 = 7,317,047.98/x
  3. Step 3: Cross multiply
    13,117,890.52x = 18,102,720.95 × 7,317,047.98
  4. Step 4: Simplify right side
    13,117,890.52x = 132,458,477,759,701.19
  5. Step 5: Solve for x
    x = 132,458,477,759,701.19/13,117,890.52
  6. Step 6: Final answer
    x = 10,097,544.08

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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.