Home / 10,128,087.77-15,192,109.10-7,825,928.40

Finding the Fourth Proportional to 10,128,087.77, 15,192,109.10 and 7,825,928.40

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Solution

The fourth proportional to 10,128,087.77, 15,192,109.10 and 7,825,928.40 is: 11,738,875.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,128,087.77 : 15,192,109.10 = 7,825,928.40 : x
  2. Step 2: Convert to fraction form
    10,128,087.77/15,192,109.10 = 7,825,928.40/x
  3. Step 3: Cross multiply
    10,128,087.77x = 15,192,109.10 × 7,825,928.40
  4. Step 4: Simplify right side
    10,128,087.77x = 118,892,358,081,153.27
  5. Step 5: Solve for x
    x = 118,892,358,081,153.27/10,128,087.77
  6. Step 6: Final answer
    x = 11,738,875.17

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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.