Home / 1,315,085,829.16-1,972,382,123.04-659,860,927.24

Finding the Fourth Proportional to 1,315,085,829.16, 1,972,382,123.04 and 659,860,927.24

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Solution

The fourth proportional to 1,315,085,829.16, 1,972,382,123.04 and 659,860,927.24 is: 989,667,645.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,085,829.16 : 1,972,382,123.04 = 659,860,927.24 : x
  2. Step 2: Convert to fraction form
    1,315,085,829.16/1,972,382,123.04 = 659,860,927.24/x
  3. Step 3: Cross multiply
    1,315,085,829.16x = 1,972,382,123.04 × 659,860,927.24
  4. Step 4: Simplify right side
    1,315,085,829.16x = 1,301,497,896,580,774,144
  5. Step 5: Solve for x
    x = 1,301,497,896,580,774,144/1,315,085,829.16
  6. Step 6: Final answer
    x = 989,667,645.81

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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.