Home / 15,334,749.72-21,161,242.80-8,803,782.72

Finding the Fourth Proportional to 15,334,749.72, 21,161,242.80 and 8,803,782.72

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Solution

The fourth proportional to 15,334,749.72, 21,161,242.80 and 8,803,782.72 is: 12,148,811.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,334,749.72 : 21,161,242.80 = 8,803,782.72 : x
  2. Step 2: Convert to fraction form
    15,334,749.72/21,161,242.80 = 8,803,782.72/x
  3. Step 3: Cross multiply
    15,334,749.72x = 21,161,242.80 × 8,803,782.72
  4. Step 4: Simplify right side
    15,334,749.72x = 186,298,983,696,364.44
  5. Step 5: Solve for x
    x = 186,298,983,696,364.44/15,334,749.72
  6. Step 6: Final answer
    x = 12,148,811.50

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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.