Home / 27,709,109.76-38,238,626.88-15,485,966.40

Finding the Fourth Proportional to 27,709,109.76, 38,238,626.88 and 15,485,966.40

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Solution

The fourth proportional to 27,709,109.76, 38,238,626.88 and 15,485,966.40 is: 21,370,664.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,709,109.76 : 38,238,626.88 = 15,485,966.40 : x
  2. Step 2: Convert to fraction form
    27,709,109.76/38,238,626.88 = 15,485,966.40/x
  3. Step 3: Cross multiply
    27,709,109.76x = 38,238,626.88 × 15,485,966.40
  4. Step 4: Simplify right side
    27,709,109.76x = 592,162,091,045,816.88
  5. Step 5: Solve for x
    x = 592,162,091,045,816.88/27,709,109.76
  6. Step 6: Final answer
    x = 21,370,664.60

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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.