Home / 28,232,802.55-38,939,302.59-20,421,616.30

Finding the Fourth Proportional to 28,232,802.55, 38,939,302.59 and 20,421,616.30

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Solution

The fourth proportional to 28,232,802.55, 38,939,302.59 and 20,421,616.30 is: 28,165,942.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,232,802.55 : 38,939,302.59 = 20,421,616.30 : x
  2. Step 2: Convert to fraction form
    28,232,802.55/38,939,302.59 = 20,421,616.30/x
  3. Step 3: Cross multiply
    28,232,802.55x = 38,939,302.59 × 20,421,616.30
  4. Step 4: Simplify right side
    28,232,802.55x = 795,203,496,482,576.38
  5. Step 5: Solve for x
    x = 795,203,496,482,576.38/28,232,802.55
  6. Step 6: Final answer
    x = 28,165,942.61

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1.5x scale

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.