Home / 1,139,056,356,420.30-1,571,899,328,458.80-618,211,782,788.85

Finding the Fourth Proportional to 1,139,056,356,420.30, 1,571,899,328,458.80 and 618,211,782,788.85

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Solution

The fourth proportional to 1,139,056,356,420.30, 1,571,899,328,458.80 and 618,211,782,788.85 is: 853,133,105,077.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,139,056,356,420.30 : 1,571,899,328,458.80 = 618,211,782,788.85 : x
  2. Step 2: Convert to fraction form
    1,139,056,356,420.30/1,571,899,328,458.80 = 618,211,782,788.85/x
  3. Step 3: Cross multiply
    1,139,056,356,420.30x = 1,571,899,328,458.80 × 618,211,782,788.85
  4. Step 4: Simplify right side
    1,139,056,356,420.30x = 971,766,686,211,110,896,402,432
  5. Step 5: Solve for x
    x = 971,766,686,211,110,896,402,432/1,139,056,356,420.30
  6. Step 6: Final answer
    x = 853,133,105,077.50

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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.