Home / 1,500,841,248.31-2,071,161,119.06-831,829,485.84

Finding the Fourth Proportional to 1,500,841,248.31, 2,071,161,119.06 and 831,829,485.84

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Solution

The fourth proportional to 1,500,841,248.31, 2,071,161,119.06 and 831,829,485.84 is: 1,147,924,799.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,500,841,248.31 : 2,071,161,119.06 = 831,829,485.84 : x
  2. Step 2: Convert to fraction form
    1,500,841,248.31/2,071,161,119.06 = 831,829,485.84/x
  3. Step 3: Cross multiply
    1,500,841,248.31x = 2,071,161,119.06 × 831,829,485.84
  4. Step 4: Simplify right side
    1,500,841,248.31x = 1,722,852,888,759,478,784
  5. Step 5: Solve for x
    x = 1,722,852,888,759,478,784/1,500,841,248.31
  6. Step 6: Final answer
    x = 1,147,924,799.31

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Double scale
Find fourth proportional to 1,500,841,249.31, 2,071,161,120.44 and 831,829,486.84
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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.