Home / 391,217,926.55-539,886,002.74-212,605,360.37

Finding the Fourth Proportional to 391,217,926.55, 539,886,002.74 and 212,605,360.37

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Solution

The fourth proportional to 391,217,926.55, 539,886,002.74 and 212,605,360.37 is: 293,398,258.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,217,926.55 : 539,886,002.74 = 212,605,360.37 : x
  2. Step 2: Convert to fraction form
    391,217,926.55/539,886,002.74 = 212,605,360.37/x
  3. Step 3: Cross multiply
    391,217,926.55x = 539,886,002.74 × 212,605,360.37
  4. Step 4: Simplify right side
    391,217,926.55x = 114,782,658,168,557,088
  5. Step 5: Solve for x
    x = 114,782,658,168,557,088/391,217,926.55
  6. Step 6: Final answer
    x = 293,398,258.05

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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.