Home / 13,709,216.79-18,920,802.86-8,749,799.11

Finding the Fourth Proportional to 13,709,216.79, 18,920,802.86 and 8,749,799.11

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Solution

The fourth proportional to 13,709,216.79, 18,920,802.86 and 8,749,799.11 is: 12,076,052.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,709,216.79 : 18,920,802.86 = 8,749,799.11 : x
  2. Step 2: Convert to fraction form
    13,709,216.79/18,920,802.86 = 8,749,799.11/x
  3. Step 3: Cross multiply
    13,709,216.79x = 18,920,802.86 × 8,749,799.11
  4. Step 4: Simplify right side
    13,709,216.79x = 165,553,224,037,627.22
  5. Step 5: Solve for x
    x = 165,553,224,037,627.22/13,709,216.79
  6. Step 6: Final answer
    x = 12,076,052.67

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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.