Home / 697,248,422.40-1,045,760,659.20-212,461,478.40

Finding the Fourth Proportional to 697,248,422.40, 1,045,760,659.20 and 212,461,478.40

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Solution

The fourth proportional to 697,248,422.40, 1,045,760,659.20 and 212,461,478.40 is: 318,658,097.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,248,422.40 : 1,045,760,659.20 = 212,461,478.40 : x
  2. Step 2: Convert to fraction form
    697,248,422.40/1,045,760,659.20 = 212,461,478.40/x
  3. Step 3: Cross multiply
    697,248,422.40x = 1,045,760,659.20 × 212,461,478.40
  4. Step 4: Simplify right side
    697,248,422.40x = 222,183,855,706,190,592
  5. Step 5: Solve for x
    x = 222,183,855,706,190,592/697,248,422.40
  6. Step 6: Final answer
    x = 318,658,097.41

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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.