Home / 28,300,695.14-39,054,054.69-15,911,312.81

Finding the Fourth Proportional to 28,300,695.14, 39,054,054.69 and 15,911,312.81

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Solution

The fourth proportional to 28,300,695.14, 39,054,054.69 and 15,911,312.81 is: 21,957,103.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,300,695.14 : 39,054,054.69 = 15,911,312.81 : x
  2. Step 2: Convert to fraction form
    28,300,695.14/39,054,054.69 = 15,911,312.81/x
  3. Step 3: Cross multiply
    28,300,695.14x = 39,054,054.69 × 15,911,312.81
  4. Step 4: Simplify right side
    28,300,695.14x = 621,401,280,476,167.25
  5. Step 5: Solve for x
    x = 621,401,280,476,167.25/28,300,695.14
  6. Step 6: Final answer
    x = 21,957,103.08

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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.