Home / 13,168,307.15-18,172,129.93-7,287,952.77

Finding the Fourth Proportional to 13,168,307.15, 18,172,129.93 and 7,287,952.77

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Solution

The fourth proportional to 13,168,307.15, 18,172,129.93 and 7,287,952.77 is: 10,057,300.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,168,307.15 : 18,172,129.93 = 7,287,952.77 : x
  2. Step 2: Convert to fraction form
    13,168,307.15/18,172,129.93 = 7,287,952.77/x
  3. Step 3: Cross multiply
    13,168,307.15x = 18,172,129.93 × 7,287,952.77
  4. Step 4: Simplify right side
    13,168,307.15x = 132,437,624,660,143.39
  5. Step 5: Solve for x
    x = 132,437,624,660,143.39/13,168,307.15
  6. Step 6: Final answer
    x = 10,057,300.70

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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.