Home / 672,841,103.70-1,008,175,153.95-380,839,862.10

Finding the Fourth Proportional to 672,841,103.70, 1,008,175,153.95 and 380,839,862.10

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Solution

The fourth proportional to 672,841,103.70, 1,008,175,153.95 and 380,839,862.10 is: 570,644,814.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,841,103.70 : 1,008,175,153.95 = 380,839,862.10 : x
  2. Step 2: Convert to fraction form
    672,841,103.70/1,008,175,153.95 = 380,839,862.10/x
  3. Step 3: Cross multiply
    672,841,103.70x = 1,008,175,153.95 × 380,839,862.10
  4. Step 4: Simplify right side
    672,841,103.70x = 383,953,286,602,964,288
  5. Step 5: Solve for x
    x = 383,953,286,602,964,288/672,841,103.70
  6. Step 6: Final answer
    x = 570,644,814.19

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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.