Home / 6,378,623,999.40-9,567,935,999.10-3,916,978,789.80

Finding the Fourth Proportional to 6,378,623,999.40, 9,567,935,999.10 and 3,916,978,789.80

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Solution

The fourth proportional to 6,378,623,999.40, 9,567,935,999.10 and 3,916,978,789.80 is: 5,875,468,184.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,378,623,999.40 : 9,567,935,999.10 = 3,916,978,789.80 : x
  2. Step 2: Convert to fraction form
    6,378,623,999.40/9,567,935,999.10 = 3,916,978,789.80/x
  3. Step 3: Cross multiply
    6,378,623,999.40x = 9,567,935,999.10 × 3,916,978,789.80
  4. Step 4: Simplify right side
    6,378,623,999.40x = 37,477,402,370,638,577,664
  5. Step 5: Solve for x
    x = 37,477,402,370,638,577,664/6,378,623,999.40
  6. Step 6: Final answer
    x = 5,875,468,184.70

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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.