Home / 212,598,467.24-318,828,765.78-81,433,763.24

Finding the Fourth Proportional to 212,598,467.24, 318,828,765.78 and 81,433,763.24

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Solution

The fourth proportional to 212,598,467.24, 318,828,765.78 and 81,433,763.24 is: 122,124,239.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,598,467.24 : 318,828,765.78 = 81,433,763.24 : x
  2. Step 2: Convert to fraction form
    212,598,467.24/318,828,765.78 = 81,433,763.24/x
  3. Step 3: Cross multiply
    212,598,467.24x = 318,828,765.78 × 81,433,763.24
  4. Step 4: Simplify right side
    212,598,467.24x = 25,963,426,225,035,788
  5. Step 5: Solve for x
    x = 25,963,426,225,035,788/212,598,467.24
  6. Step 6: Final answer
    x = 122,124,239.95

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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.