Home / 1,388,193,443.64-1,915,710,665.40-753,113,933.73

Finding the Fourth Proportional to 1,388,193,443.64, 1,915,710,665.40 and 753,113,933.73

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Solution

The fourth proportional to 1,388,193,443.64, 1,915,710,665.40 and 753,113,933.73 is: 1,039,299,243.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,193,443.64 : 1,915,710,665.40 = 753,113,933.73 : x
  2. Step 2: Convert to fraction form
    1,388,193,443.64/1,915,710,665.40 = 753,113,933.73/x
  3. Step 3: Cross multiply
    1,388,193,443.64x = 1,915,710,665.40 × 753,113,933.73
  4. Step 4: Simplify right side
    1,388,193,443.64x = 1,442,748,395,107,909,888
  5. Step 5: Solve for x
    x = 1,442,748,395,107,909,888/1,388,193,443.64
  6. Step 6: Final answer
    x = 1,039,299,243.00

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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.