Home / 13,407,875.70-20,111,813.55-8,620,970.10

Finding the Fourth Proportional to 13,407,875.70, 20,111,813.55 and 8,620,970.10

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Solution

The fourth proportional to 13,407,875.70, 20,111,813.55 and 8,620,970.10 is: 12,931,455.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,407,875.70 : 20,111,813.55 = 8,620,970.10 : x
  2. Step 2: Convert to fraction form
    13,407,875.70/20,111,813.55 = 8,620,970.10/x
  3. Step 3: Cross multiply
    13,407,875.70x = 20,111,813.55 × 8,620,970.10
  4. Step 4: Simplify right side
    13,407,875.70x = 173,383,343,271,324.84
  5. Step 5: Solve for x
    x = 173,383,343,271,324.84/13,407,875.70
  6. Step 6: Final answer
    x = 12,931,455.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.