Home / 1,113,231,398.63-1,536,782,371.16-643,241,807.19

Finding the Fourth Proportional to 1,113,231,398.63, 1,536,782,371.16 and 643,241,807.19

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Solution

The fourth proportional to 1,113,231,398.63, 1,536,782,371.16 and 643,241,807.19 is: 887,975,914.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,113,231,398.63 : 1,536,782,371.16 = 643,241,807.19 : x
  2. Step 2: Convert to fraction form
    1,113,231,398.63/1,536,782,371.16 = 643,241,807.19/x
  3. Step 3: Cross multiply
    1,113,231,398.63x = 1,536,782,371.16 × 643,241,807.19
  4. Step 4: Simplify right side
    1,113,231,398.63x = 988,522,669,679,475,584
  5. Step 5: Solve for x
    x = 988,522,669,679,475,584/1,113,231,398.63
  6. Step 6: Final answer
    x = 887,975,914.89

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Double scale
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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.