Home / 1,230,545,065.92-1,698,152,064.48-666,029,849.28

Finding the Fourth Proportional to 1,230,545,065.92, 1,698,152,064.48 and 666,029,849.28

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Solution

The fourth proportional to 1,230,545,065.92, 1,698,152,064.48 and 666,029,849.28 is: 919,121,123.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,545,065.92 : 1,698,152,064.48 = 666,029,849.28 : x
  2. Step 2: Convert to fraction form
    1,230,545,065.92/1,698,152,064.48 = 666,029,849.28/x
  3. Step 3: Cross multiply
    1,230,545,065.92x = 1,698,152,064.48 × 666,029,849.28
  4. Step 4: Simplify right side
    1,230,545,065.92x = 1,131,019,963,560,135,168
  5. Step 5: Solve for x
    x = 1,131,019,963,560,135,168/1,230,545,065.92
  6. Step 6: Final answer
    x = 919,121,123.54

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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.