Home / 15,588,221.45-21,507,020.95-10,878,491.67

Finding the Fourth Proportional to 15,588,221.45, 21,507,020.95 and 10,878,491.67

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Solution

The fourth proportional to 15,588,221.45, 21,507,020.95 and 10,878,491.67 is: 15,009,021.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,588,221.45 : 21,507,020.95 = 10,878,491.67 : x
  2. Step 2: Convert to fraction form
    15,588,221.45/21,507,020.95 = 10,878,491.67/x
  3. Step 3: Cross multiply
    15,588,221.45x = 21,507,020.95 × 10,878,491.67
  4. Step 4: Simplify right side
    15,588,221.45x = 233,963,948,089,162.91
  5. Step 5: Solve for x
    x = 233,963,948,089,162.91/15,588,221.45
  6. Step 6: Final answer
    x = 15,009,021.32

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1.5x scale

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.