Home / 281,927,516,837.40-389,060,015,206.14-153,469,940,643.57

Finding the Fourth Proportional to 281,927,516,837.40, 389,060,015,206.14 and 153,469,940,643.57

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Solution

The fourth proportional to 281,927,516,837.40, 389,060,015,206.14 and 153,469,940,643.57 is: 211,788,540,935.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,927,516,837.40 : 389,060,015,206.14 = 153,469,940,643.57 : x
  2. Step 2: Convert to fraction form
    281,927,516,837.40/389,060,015,206.14 = 153,469,940,643.57/x
  3. Step 3: Cross multiply
    281,927,516,837.40x = 389,060,015,206.14 × 153,469,940,643.57
  4. Step 4: Simplify right side
    281,927,516,837.40x = 59,709,017,440,472,753,242,112
  5. Step 5: Solve for x
    x = 59,709,017,440,472,753,242,112/281,927,516,837.40
  6. Step 6: Final answer
    x = 211,788,540,935.19

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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.