Home / 1,500,841,281.21-2,071,161,164.51-831,829,518.73

Finding the Fourth Proportional to 1,500,841,281.21, 2,071,161,164.51 and 831,829,518.73

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Solution

The fourth proportional to 1,500,841,281.21, 2,071,161,164.51 and 831,829,518.73 is: 1,147,924,844.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,500,841,281.21 : 2,071,161,164.51 = 831,829,518.73 : x
  2. Step 2: Convert to fraction form
    1,500,841,281.21/2,071,161,164.51 = 831,829,518.73/x
  3. Step 3: Cross multiply
    1,500,841,281.21x = 2,071,161,164.51 × 831,829,518.73
  4. Step 4: Simplify right side
    1,500,841,281.21x = 1,722,852,994,686,619,648
  5. Step 5: Solve for x
    x = 1,722,852,994,686,619,648/1,500,841,281.21
  6. Step 6: Final answer
    x = 1,147,924,844.72

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Double scale
Find fourth proportional to 1,500,841,282.21, 2,071,161,165.89 and 831,829,519.73
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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.