Home / 1,010,640,153.80-1,515,960,230.70-492,804,043.40

Finding the Fourth Proportional to 1,010,640,153.80, 1,515,960,230.70 and 492,804,043.40

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Solution

The fourth proportional to 1,010,640,153.80, 1,515,960,230.70 and 492,804,043.40 is: 739,206,065.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,010,640,153.80 : 1,515,960,230.70 = 492,804,043.40 : x
  2. Step 2: Convert to fraction form
    1,010,640,153.80/1,515,960,230.70 = 492,804,043.40/x
  3. Step 3: Cross multiply
    1,010,640,153.80x = 1,515,960,230.70 × 492,804,043.40
  4. Step 4: Simplify right side
    1,010,640,153.80x = 747,071,331,322,556,800
  5. Step 5: Solve for x
    x = 747,071,331,322,556,800/1,010,640,153.80
  6. Step 6: Final answer
    x = 739,206,065.10

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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.