Home / 1,905,696,029.60-2,858,544,044.40-678,904,503.20

Finding the Fourth Proportional to 1,905,696,029.60, 2,858,544,044.40 and 678,904,503.20

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Solution

The fourth proportional to 1,905,696,029.60, 2,858,544,044.40 and 678,904,503.20 is: 1,018,356,754.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,905,696,029.60 : 2,858,544,044.40 = 678,904,503.20 : x
  2. Step 2: Convert to fraction form
    1,905,696,029.60/2,858,544,044.40 = 678,904,503.20/x
  3. Step 3: Cross multiply
    1,905,696,029.60x = 2,858,544,044.40 × 678,904,503.20
  4. Step 4: Simplify right side
    1,905,696,029.60x = 1,940,678,424,338,701,056
  5. Step 5: Solve for x
    x = 1,940,678,424,338,701,056/1,905,696,029.60
  6. Step 6: Final answer
    x = 1,018,356,754.80

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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.