Home / 1,216,365,357,375.10-1,678,585,855,422.60-660,170,492,855.15

Finding the Fourth Proportional to 1,216,365,357,375.10, 1,678,585,855,422.60 and 660,170,492,855.15

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Solution

The fourth proportional to 1,216,365,357,375.10, 1,678,585,855,422.60 and 660,170,492,855.15 is: 911,036,182,307.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,365,357,375.10 : 1,678,585,855,422.60 = 660,170,492,855.15 : x
  2. Step 2: Convert to fraction form
    1,216,365,357,375.10/1,678,585,855,422.60 = 660,170,492,855.15/x
  3. Step 3: Cross multiply
    1,216,365,357,375.10x = 1,678,585,855,422.60 × 660,170,492,855.15
  4. Step 4: Simplify right side
    1,216,365,357,375.10x = 1,108,152,851,474,021,452,087,296
  5. Step 5: Solve for x
    x = 1,108,152,851,474,021,452,087,296/1,216,365,357,375.10
  6. Step 6: Final answer
    x = 911,036,182,307.43

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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.