Home / 20,809,038.60-31,212,002.70-8,675,368.20

Finding the Fourth Proportional to 20,809,038.60, 31,212,002.70 and 8,675,368.20

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Solution

The fourth proportional to 20,809,038.60, 31,212,002.70 and 8,675,368.20 is: 13,012,403.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,809,038.60 : 31,212,002.70 = 8,675,368.20 : x
  2. Step 2: Convert to fraction form
    20,809,038.60/31,212,002.70 = 8,675,368.20/x
  3. Step 3: Cross multiply
    20,809,038.60x = 31,212,002.70 × 8,675,368.20
  4. Step 4: Simplify right side
    20,809,038.60x = 270,775,615,681,894.12
  5. Step 5: Solve for x
    x = 270,775,615,681,894.12/20,809,038.60
  6. Step 6: Final answer
    x = 13,012,403.93

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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.