Home / 1,500,841,280.21-2,071,161,163.13-831,829,517.73

Finding the Fourth Proportional to 1,500,841,280.21, 2,071,161,163.13 and 831,829,517.73

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Solution

The fourth proportional to 1,500,841,280.21, 2,071,161,163.13 and 831,829,517.73 is: 1,147,924,843.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,500,841,280.21 : 2,071,161,163.13 = 831,829,517.73 : x
  2. Step 2: Convert to fraction form
    1,500,841,280.21/2,071,161,163.13 = 831,829,517.73/x
  3. Step 3: Cross multiply
    1,500,841,280.21x = 2,071,161,163.13 × 831,829,517.73
  4. Step 4: Simplify right side
    1,500,841,280.21x = 1,722,852,991,463,374,592
  5. Step 5: Solve for x
    x = 1,722,852,991,463,374,592/1,500,841,280.21
  6. Step 6: Final answer
    x = 1,147,924,843.34

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Double scale
Find fourth proportional to 1,500,841,281.21, 2,071,161,164.51 and 831,829,518.73
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1.5x scale

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.