Home / 28,341,941.88-42,519,658.70-9,172,698.96

Finding the Fourth Proportional to 28,341,941.88, 42,519,658.70 and 9,172,698.96

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Solution

The fourth proportional to 28,341,941.88, 42,519,658.70 and 9,172,698.96 is: 13,761,231.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,341,941.88 : 42,519,658.70 = 9,172,698.96 : x
  2. Step 2: Convert to fraction form
    28,341,941.88/42,519,658.70 = 9,172,698.96/x
  3. Step 3: Cross multiply
    28,341,941.88x = 42,519,658.70 × 9,172,698.96
  4. Step 4: Simplify right side
    28,341,941.88x = 390,020,029,091,181.50
  5. Step 5: Solve for x
    x = 390,020,029,091,181.50/28,341,941.88
  6. Step 6: Final answer
    x = 13,761,231.70

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1.5x scale

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.