Home / 1,251,683,999.80-1,877,525,999.70-331,702,329.40

Finding the Fourth Proportional to 1,251,683,999.80, 1,877,525,999.70 and 331,702,329.40

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Solution

The fourth proportional to 1,251,683,999.80, 1,877,525,999.70 and 331,702,329.40 is: 497,553,494.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,251,683,999.80 : 1,877,525,999.70 = 331,702,329.40 : x
  2. Step 2: Convert to fraction form
    1,251,683,999.80/1,877,525,999.70 = 331,702,329.40/x
  3. Step 3: Cross multiply
    1,251,683,999.80x = 1,877,525,999.70 × 331,702,329.40
  4. Step 4: Simplify right side
    1,251,683,999.80x = 622,779,747,609,553,664
  5. Step 5: Solve for x
    x = 622,779,747,609,553,664/1,251,683,999.80
  6. Step 6: Final answer
    x = 497,553,494.10

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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.