Home / 28,991,653.68-40,008,751.12-15,939,004.40

Finding the Fourth Proportional to 28,991,653.68, 40,008,751.12 and 15,939,004.40

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Solution

The fourth proportional to 28,991,653.68, 40,008,751.12 and 15,939,004.40 is: 21,995,973.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,991,653.68 : 40,008,751.12 = 15,939,004.40 : x
  2. Step 2: Convert to fraction form
    28,991,653.68/40,008,751.12 = 15,939,004.40/x
  3. Step 3: Cross multiply
    28,991,653.68x = 40,008,751.12 × 15,939,004.40
  4. Step 4: Simplify right side
    28,991,653.68x = 637,699,660,140,184.88
  5. Step 5: Solve for x
    x = 637,699,660,140,184.88/28,991,653.68
  6. Step 6: Final answer
    x = 21,995,973.99

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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.