Home / 869,242,072.80-1,303,863,109.20-524,017,999.20

Finding the Fourth Proportional to 869,242,072.80, 1,303,863,109.20 and 524,017,999.20

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Solution

The fourth proportional to 869,242,072.80, 1,303,863,109.20 and 524,017,999.20 is: 786,026,998.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,242,072.80 : 1,303,863,109.20 = 524,017,999.20 : x
  2. Step 2: Convert to fraction form
    869,242,072.80/1,303,863,109.20 = 524,017,999.20/x
  3. Step 3: Cross multiply
    869,242,072.80x = 1,303,863,109.20 × 524,017,999.20
  4. Step 4: Simplify right side
    869,242,072.80x = 683,247,737,713,675,136
  5. Step 5: Solve for x
    x = 683,247,737,713,675,136/869,242,072.80
  6. Step 6: Final answer
    x = 786,026,998.80

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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.