Home / 418,446,971.29-627,761,258.43-127,306,527.67

Finding the Fourth Proportional to 418,446,971.29, 627,761,258.43 and 127,306,527.67

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Solution

The fourth proportional to 418,446,971.29, 627,761,258.43 and 127,306,527.67 is: 190,987,416.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,446,971.29 : 627,761,258.43 = 127,306,527.67 : x
  2. Step 2: Convert to fraction form
    418,446,971.29/627,761,258.43 = 127,306,527.67/x
  3. Step 3: Cross multiply
    418,446,971.29x = 627,761,258.43 × 127,306,527.67
  4. Step 4: Simplify right side
    418,446,971.29x = 79,918,106,016,472,816
  5. Step 5: Solve for x
    x = 79,918,106,016,472,816/418,446,971.29
  6. Step 6: Final answer
    x = 190,987,416.57

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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.