Home / 1,113,231,387.38-1,536,782,355.63-643,241,795.94

Finding the Fourth Proportional to 1,113,231,387.38, 1,536,782,355.63 and 643,241,795.94

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Solution

The fourth proportional to 1,113,231,387.38, 1,536,782,355.63 and 643,241,795.94 is: 887,975,899.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,113,231,387.38 : 1,536,782,355.63 = 643,241,795.94 : x
  2. Step 2: Convert to fraction form
    1,113,231,387.38/1,536,782,355.63 = 643,241,795.94/x
  3. Step 3: Cross multiply
    1,113,231,387.38x = 1,536,782,355.63 × 643,241,795.94
  4. Step 4: Simplify right side
    1,113,231,387.38x = 988,522,642,404,345,088
  5. Step 5: Solve for x
    x = 988,522,642,404,345,088/1,113,231,387.38
  6. Step 6: Final answer
    x = 887,975,899.36

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Double scale
Find fourth proportional to 1,113,231,388.38, 1,536,782,357.01 and 643,241,796.94
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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.