Home / 7,172,409.45-9,897,928.70-4,074,938.16

Finding the Fourth Proportional to 7,172,409.45, 9,897,928.70 and 4,074,938.16

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Solution

The fourth proportional to 7,172,409.45, 9,897,928.70 and 4,074,938.16 is: 5,623,416.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,172,409.45 : 9,897,928.70 = 4,074,938.16 : x
  2. Step 2: Convert to fraction form
    7,172,409.45/9,897,928.70 = 4,074,938.16/x
  3. Step 3: Cross multiply
    7,172,409.45x = 9,897,928.70 × 4,074,938.16
  4. Step 4: Simplify right side
    7,172,409.45x = 40,333,447,364,589.19
  5. Step 5: Solve for x
    x = 40,333,447,364,589.19/7,172,409.45
  6. Step 6: Final answer
    x = 5,623,416.74

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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.