Home / 30,998,068.38-42,783,256.89-20,525,613.48

Finding the Fourth Proportional to 30,998,068.38, 42,783,256.89 and 20,525,613.48

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Solution

The fourth proportional to 30,998,068.38, 42,783,256.89 and 20,525,613.48 is: 28,329,268.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,998,068.38 : 42,783,256.89 = 20,525,613.48 : x
  2. Step 2: Convert to fraction form
    30,998,068.38/42,783,256.89 = 20,525,613.48/x
  3. Step 3: Cross multiply
    30,998,068.38x = 42,783,256.89 × 20,525,613.48
  4. Step 4: Simplify right side
    30,998,068.38x = 878,152,594,339,686.88
  5. Step 5: Solve for x
    x = 878,152,594,339,686.88/30,998,068.38
  6. Step 6: Final answer
    x = 28,329,268.25

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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.