Home / 31,519,023.12-43,503,014.79-19,909,202.40

Finding the Fourth Proportional to 31,519,023.12, 43,503,014.79 and 19,909,202.40

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Solution

The fourth proportional to 31,519,023.12, 43,503,014.79 and 19,909,202.40 is: 27,478,971.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,519,023.12 : 43,503,014.79 = 19,909,202.40 : x
  2. Step 2: Convert to fraction form
    31,519,023.12/43,503,014.79 = 19,909,202.40/x
  3. Step 3: Cross multiply
    31,519,023.12x = 43,503,014.79 × 19,909,202.40
  4. Step 4: Simplify right side
    31,519,023.12x = 866,110,326,464,303.38
  5. Step 5: Solve for x
    x = 866,110,326,464,303.38/31,519,023.12
  6. Step 6: Final answer
    x = 27,478,971.13

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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.