Home / 5,185,125.17-7,154,404.48-2,979,561.98

Finding the Fourth Proportional to 5,185,125.17, 7,154,404.48 and 2,979,561.98

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Solution

The fourth proportional to 5,185,125.17, 7,154,404.48 and 2,979,561.98 is: 4,111,181.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,185,125.17 : 7,154,404.48 = 2,979,561.98 : x
  2. Step 2: Convert to fraction form
    5,185,125.17/7,154,404.48 = 2,979,561.98/x
  3. Step 3: Cross multiply
    5,185,125.17x = 7,154,404.48 × 2,979,561.98
  4. Step 4: Simplify right side
    5,185,125.17x = 21,316,991,578,149.67
  5. Step 5: Solve for x
    x = 21,316,991,578,149.67/5,185,125.17
  6. Step 6: Final answer
    x = 4,111,181.67

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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.