Home / 28,280,256.09-39,026,738.97-15,890,398.08

Finding the Fourth Proportional to 28,280,256.09, 39,026,738.97 and 15,890,398.08

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Solution

The fourth proportional to 28,280,256.09, 39,026,738.97 and 15,890,398.08 is: 21,928,741.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,280,256.09 : 39,026,738.97 = 15,890,398.08 : x
  2. Step 2: Convert to fraction form
    28,280,256.09/39,026,738.97 = 15,890,398.08/x
  3. Step 3: Cross multiply
    28,280,256.09x = 39,026,738.97 × 15,890,398.08
  4. Step 4: Simplify right side
    28,280,256.09x = 620,150,417,997,549.12
  5. Step 5: Solve for x
    x = 620,150,417,997,549.12/28,280,256.09
  6. Step 6: Final answer
    x = 21,928,741.24

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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.