Home / 1,429,144,715,779.20-1,972,220,117,627.50-778,823,481,879.36

Finding the Fourth Proportional to 1,429,144,715,779.20, 1,972,220,117,627.50 and 778,823,481,879.36

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Solution

The fourth proportional to 1,429,144,715,779.20, 1,972,220,117,627.50 and 778,823,481,879.36 is: 1,074,776,628,345.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,429,144,715,779.20 : 1,972,220,117,627.50 = 778,823,481,879.36 : x
  2. Step 2: Convert to fraction form
    1,429,144,715,779.20/1,972,220,117,627.50 = 778,823,481,879.36/x
  3. Step 3: Cross multiply
    1,429,144,715,779.20x = 1,972,220,117,627.50 × 778,823,481,879.36
  4. Step 4: Simplify right side
    1,429,144,715,779.20x = 1,536,011,339,043,170,525,642,752
  5. Step 5: Solve for x
    x = 1,536,011,339,043,170,525,642,752/1,429,144,715,779.20
  6. Step 6: Final answer
    x = 1,074,776,628,345.65

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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.