Home / 15,678,074.64-21,635,011.80-8,709,204.24

Finding the Fourth Proportional to 15,678,074.64, 21,635,011.80 and 8,709,204.24

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Solution

The fourth proportional to 15,678,074.64, 21,635,011.80 and 8,709,204.24 is: 12,018,295.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,678,074.64 : 21,635,011.80 = 8,709,204.24 : x
  2. Step 2: Convert to fraction form
    15,678,074.64/21,635,011.80 = 8,709,204.24/x
  3. Step 3: Cross multiply
    15,678,074.64x = 21,635,011.80 × 8,709,204.24
  4. Step 4: Simplify right side
    15,678,074.64x = 188,423,736,501,010.03
  5. Step 5: Solve for x
    x = 188,423,736,501,010.03/15,678,074.64
  6. Step 6: Final answer
    x = 12,018,295.67

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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.