Home / 492,276,498.23-679,550,742.74-306,729,187.49

Finding the Fourth Proportional to 492,276,498.23, 679,550,742.74 and 306,729,187.49

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Solution

The fourth proportional to 492,276,498.23, 679,550,742.74 and 306,729,187.49 is: 423,416,612.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,276,498.23 : 679,550,742.74 = 306,729,187.49 : x
  2. Step 2: Convert to fraction form
    492,276,498.23/679,550,742.74 = 306,729,187.49/x
  3. Step 3: Cross multiply
    492,276,498.23x = 679,550,742.74 × 306,729,187.49
  4. Step 4: Simplify right side
    492,276,498.23x = 208,438,047,178,866,240
  5. Step 5: Solve for x
    x = 208,438,047,178,866,240/492,276,498.23
  6. Step 6: Final answer
    x = 423,416,612.27

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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.