Home / 917,001,093.80-1,265,456,119.34-499,312,379

Finding the Fourth Proportional to 917,001,093.80, 1,265,456,119.34 and 499,312,379

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Solution

The fourth proportional to 917,001,093.80, 1,265,456,119.34 and 499,312,379 is: 689,048,148.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,001,093.80 : 1,265,456,119.34 = 499,312,379 : x
  2. Step 2: Convert to fraction form
    917,001,093.80/1,265,456,119.34 = 499,312,379/x
  3. Step 3: Cross multiply
    917,001,093.80x = 1,265,456,119.34 × 499,312,379
  4. Step 4: Simplify right side
    917,001,093.80x = 631,857,905,467,763,328
  5. Step 5: Solve for x
    x = 631,857,905,467,763,328/917,001,093.80
  6. Step 6: Final answer
    x = 689,048,148.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.