Home / 403,390,061,180.30-605,191,221,180.95-144,966,920,396.55

Finding the Fourth Proportional to 403,390,061,180.30, 605,191,221,180.95 and 144,966,920,396.55

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Solution

The fourth proportional to 403,390,061,180.30, 605,191,221,180.95 and 144,966,920,396.55 is: 217,488,520,487.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,390,061,180.30 : 605,191,221,180.95 = 144,966,920,396.55 : x
  2. Step 2: Convert to fraction form
    403,390,061,180.30/605,191,221,180.95 = 144,966,920,396.55/x
  3. Step 3: Cross multiply
    403,390,061,180.30x = 605,191,221,180.95 × 144,966,920,396.55
  4. Step 4: Simplify right side
    403,390,061,180.30x = 87,732,707,585,629,653,827,584
  5. Step 5: Solve for x
    x = 87,732,707,585,629,653,827,584/403,390,061,180.30
  6. Step 6: Final answer
    x = 217,488,520,487.91

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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.