Home / 28,512,101.70-42,768,152.55-8,319,384.90

Finding the Fourth Proportional to 28,512,101.70, 42,768,152.55 and 8,319,384.90

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Solution

The fourth proportional to 28,512,101.70, 42,768,152.55 and 8,319,384.90 is: 12,479,077.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,512,101.70 : 42,768,152.55 = 8,319,384.90 : x
  2. Step 2: Convert to fraction form
    28,512,101.70/42,768,152.55 = 8,319,384.90/x
  3. Step 3: Cross multiply
    28,512,101.70x = 42,768,152.55 × 8,319,384.90
  4. Step 4: Simplify right side
    28,512,101.70x = 355,804,722,525,366.50
  5. Step 5: Solve for x
    x = 355,804,722,525,366.50/28,512,101.70
  6. Step 6: Final answer
    x = 12,479,077.35

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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.