Home / 1,140,317,288.70-1,573,637,858.55-618,796,520.70

Finding the Fourth Proportional to 1,140,317,288.70, 1,573,637,858.55 and 618,796,520.70

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Solution

The fourth proportional to 1,140,317,288.70, 1,573,637,858.55 and 618,796,520.70 is: 853,939,198.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,140,317,288.70 : 1,573,637,858.55 = 618,796,520.70 : x
  2. Step 2: Convert to fraction form
    1,140,317,288.70/1,573,637,858.55 = 618,796,520.70/x
  3. Step 3: Cross multiply
    1,140,317,288.70x = 1,573,637,858.55 × 618,796,520.70
  4. Step 4: Simplify right side
    1,140,317,288.70x = 973,761,631,712,538,752
  5. Step 5: Solve for x
    x = 973,761,631,712,538,752/1,140,317,288.70
  6. Step 6: Final answer
    x = 853,939,198.64

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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.