Home / 1,251,392,830.18-1,728,355,361.82-824,140,038.61

Finding the Fourth Proportional to 1,251,392,830.18, 1,728,355,361.82 and 824,140,038.61

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Solution

The fourth proportional to 1,251,392,830.18, 1,728,355,361.82 and 824,140,038.61 is: 1,138,257,164.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,251,392,830.18 : 1,728,355,361.82 = 824,140,038.61 : x
  2. Step 2: Convert to fraction form
    1,251,392,830.18/1,728,355,361.82 = 824,140,038.61/x
  3. Step 3: Cross multiply
    1,251,392,830.18x = 1,728,355,361.82 × 824,140,038.61
  4. Step 4: Simplify right side
    1,251,392,830.18x = 1,424,406,854,622,135,296
  5. Step 5: Solve for x
    x = 1,424,406,854,622,135,296/1,251,392,830.18
  6. Step 6: Final answer
    x = 1,138,257,164.55

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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.