Home / 28,082,874.60-42,124,311.90-18,509,063.40

Finding the Fourth Proportional to 28,082,874.60, 42,124,311.90 and 18,509,063.40

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Solution

The fourth proportional to 28,082,874.60, 42,124,311.90 and 18,509,063.40 is: 27,763,595.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,082,874.60 : 42,124,311.90 = 18,509,063.40 : x
  2. Step 2: Convert to fraction form
    28,082,874.60/42,124,311.90 = 18,509,063.40/x
  3. Step 3: Cross multiply
    28,082,874.60x = 42,124,311.90 × 18,509,063.40
  4. Step 4: Simplify right side
    28,082,874.60x = 779,681,559,638,474.38
  5. Step 5: Solve for x
    x = 779,681,559,638,474.38/28,082,874.60
  6. Step 6: Final answer
    x = 27,763,595.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.