Home / 20,881,875.60-31,322,813.40-19,464,699.60

Finding the Fourth Proportional to 20,881,875.60, 31,322,813.40 and 19,464,699.60

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Solution

The fourth proportional to 20,881,875.60, 31,322,813.40 and 19,464,699.60 is: 29,197,049.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,881,875.60 : 31,322,813.40 = 19,464,699.60 : x
  2. Step 2: Convert to fraction form
    20,881,875.60/31,322,813.40 = 19,464,699.60/x
  3. Step 3: Cross multiply
    20,881,875.60x = 31,322,813.40 × 19,464,699.60
  4. Step 4: Simplify right side
    20,881,875.60x = 609,689,153,457,854.62
  5. Step 5: Solve for x
    x = 609,689,153,457,854.62/20,881,875.60
  6. Step 6: Final answer
    x = 29,197,049.40

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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.