Home / 20,676,258.18-31,014,394.56-9,303,420.78

Finding the Fourth Proportional to 20,676,258.18, 31,014,394.56 and 9,303,420.78

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Solution

The fourth proportional to 20,676,258.18, 31,014,394.56 and 9,303,420.78 is: 13,955,134.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,676,258.18 : 31,014,394.56 = 9,303,420.78 : x
  2. Step 2: Convert to fraction form
    20,676,258.18/31,014,394.56 = 9,303,420.78/x
  3. Step 3: Cross multiply
    20,676,258.18x = 31,014,394.56 × 9,303,420.78
  4. Step 4: Simplify right side
    20,676,258.18x = 288,539,962,828,622.94
  5. Step 5: Solve for x
    x = 288,539,962,828,622.94/20,676,258.18
  6. Step 6: Final answer
    x = 13,955,134.45

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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.