Home / 666,506,959,928.51-919,763,960,002.47-392,170,381,485.30

Finding the Fourth Proportional to 666,506,959,928.51, 919,763,960,002.47 and 392,170,381,485.30

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Solution

The fourth proportional to 666,506,959,928.51, 919,763,960,002.47 and 392,170,381,485.30 is: 541,185,921,163.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,506,959,928.51 : 919,763,960,002.47 = 392,170,381,485.30 : x
  2. Step 2: Convert to fraction form
    666,506,959,928.51/919,763,960,002.47 = 392,170,381,485.30/x
  3. Step 3: Cross multiply
    666,506,959,928.51x = 919,763,960,002.47 × 392,170,381,485.30
  4. Step 4: Simplify right side
    666,506,959,928.51x = 360,704,183,070,598,828,654,592
  5. Step 5: Solve for x
    x = 360,704,183,070,598,828,654,592/666,506,959,928.51
  6. Step 6: Final answer
    x = 541,185,921,163.21

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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.