Home / 21,054,497.40-31,581,746.10-17,972,139.60

Finding the Fourth Proportional to 21,054,497.40, 31,581,746.10 and 17,972,139.60

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Solution

The fourth proportional to 21,054,497.40, 31,581,746.10 and 17,972,139.60 is: 26,958,209.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,054,497.40 : 31,581,746.10 = 17,972,139.60 : x
  2. Step 2: Convert to fraction form
    21,054,497.40/31,581,746.10 = 17,972,139.60/x
  3. Step 3: Cross multiply
    21,054,497.40x = 31,581,746.10 × 17,972,139.60
  4. Step 4: Simplify right side
    21,054,497.40x = 567,591,549,720,955.62
  5. Step 5: Solve for x
    x = 567,591,549,720,955.62/21,054,497.40
  6. Step 6: Final answer
    x = 26,958,209.40

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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.