Home / 501,997,665.60-753,039,873.90-138,492,021.60

Finding the Fourth Proportional to 501,997,665.60, 753,039,873.90 and 138,492,021.60

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Solution

The fourth proportional to 501,997,665.60, 753,039,873.90 and 138,492,021.60 is: 207,749,998.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,997,665.60 : 753,039,873.90 = 138,492,021.60 : x
  2. Step 2: Convert to fraction form
    501,997,665.60/753,039,873.90 = 138,492,021.60/x
  3. Step 3: Cross multiply
    501,997,665.60x = 753,039,873.90 × 138,492,021.60
  4. Step 4: Simplify right side
    501,997,665.60x = 104,290,014,481,820,064
  5. Step 5: Solve for x
    x = 104,290,014,481,820,064/501,997,665.60
  6. Step 6: Final answer
    x = 207,749,998.91

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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.