Home / 1,397,786,342.94-1,928,985,527.61-771,295,115.34

Finding the Fourth Proportional to 1,397,786,342.94, 1,928,985,527.61 and 771,295,115.34

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Solution

The fourth proportional to 1,397,786,342.94, 1,928,985,527.61 and 771,295,115.34 is: 1,064,409,537.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,397,786,342.94 : 1,928,985,527.61 = 771,295,115.34 : x
  2. Step 2: Convert to fraction form
    1,397,786,342.94/1,928,985,527.61 = 771,295,115.34/x
  3. Step 3: Cross multiply
    1,397,786,342.94x = 1,928,985,527.61 × 771,295,115.34
  4. Step 4: Simplify right side
    1,397,786,342.94x = 1,487,817,115,007,145,728
  5. Step 5: Solve for x
    x = 1,487,817,115,007,145,728/1,397,786,342.94
  6. Step 6: Final answer
    x = 1,064,409,537.64

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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.