Home / 28,033,972.53-38,686,809.53-15,643,935.61

Finding the Fourth Proportional to 28,033,972.53, 38,686,809.53 and 15,643,935.61

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Solution

The fourth proportional to 28,033,972.53, 38,686,809.53 and 15,643,935.61 is: 21,588,590.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,033,972.53 : 38,686,809.53 = 15,643,935.61 : x
  2. Step 2: Convert to fraction form
    28,033,972.53/38,686,809.53 = 15,643,935.61/x
  3. Step 3: Cross multiply
    28,033,972.53x = 38,686,809.53 × 15,643,935.61
  4. Step 4: Simplify right side
    28,033,972.53x = 605,213,957,186,047.12
  5. Step 5: Solve for x
    x = 605,213,957,186,047.12/28,033,972.53
  6. Step 6: Final answer
    x = 21,588,590.65

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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.