Home / 28,132,255.08-38,824,139.04-15,742,240.32

Finding the Fourth Proportional to 28,132,255.08, 38,824,139.04 and 15,742,240.32

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Solution

The fourth proportional to 28,132,255.08, 38,824,139.04 and 15,742,240.32 is: 21,725,202.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,132,255.08 : 38,824,139.04 = 15,742,240.32 : x
  2. Step 2: Convert to fraction form
    28,132,255.08/38,824,139.04 = 15,742,240.32/x
  3. Step 3: Cross multiply
    28,132,255.08x = 38,824,139.04 × 15,742,240.32
  4. Step 4: Simplify right side
    28,132,255.08x = 611,178,926,984,774.12
  5. Step 5: Solve for x
    x = 611,178,926,984,774.12/28,132,255.08
  6. Step 6: Final answer
    x = 21,725,202.09

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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.