Home / 1,010,640,115.80-1,515,960,173.70-492,804,005.40

Finding the Fourth Proportional to 1,010,640,115.80, 1,515,960,173.70 and 492,804,005.40

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Solution

The fourth proportional to 1,010,640,115.80, 1,515,960,173.70 and 492,804,005.40 is: 739,206,008.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,010,640,115.80 : 1,515,960,173.70 = 492,804,005.40 : x
  2. Step 2: Convert to fraction form
    1,010,640,115.80/1,515,960,173.70 = 492,804,005.40/x
  3. Step 3: Cross multiply
    1,010,640,115.80x = 1,515,960,173.70 × 492,804,005.40
  4. Step 4: Simplify right side
    1,010,640,115.80x = 747,071,245,626,239,744
  5. Step 5: Solve for x
    x = 747,071,245,626,239,744/1,010,640,115.80
  6. Step 6: Final answer
    x = 739,206,008.10

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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.