Home / 210,374,592.99-290,311,369.32-117,555,863.55

Finding the Fourth Proportional to 210,374,592.99, 290,311,369.32 and 117,555,863.55

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Solution

The fourth proportional to 210,374,592.99, 290,311,369.32 and 117,555,863.55 is: 162,223,979.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,374,592.99 : 290,311,369.32 = 117,555,863.55 : x
  2. Step 2: Convert to fraction form
    210,374,592.99/290,311,369.32 = 117,555,863.55/x
  3. Step 3: Cross multiply
    210,374,592.99x = 290,311,369.32 × 117,555,863.55
  4. Step 4: Simplify right side
    210,374,592.99x = 34,127,803,718,795,576
  5. Step 5: Solve for x
    x = 34,127,803,718,795,576/210,374,592.99
  6. Step 6: Final answer
    x = 162,223,979.78

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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.