Home / 1,440,485,529.84-1,986,773,257.20-1,239,883,824.16

Finding the Fourth Proportional to 1,440,485,529.84, 1,986,773,257.20 and 1,239,883,824.16

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Solution

The fourth proportional to 1,440,485,529.84, 1,986,773,257.20 and 1,239,883,824.16 is: 1,710,095,639.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,440,485,529.84 : 1,986,773,257.20 = 1,239,883,824.16 : x
  2. Step 2: Convert to fraction form
    1,440,485,529.84/1,986,773,257.20 = 1,239,883,824.16/x
  3. Step 3: Cross multiply
    1,440,485,529.84x = 1,986,773,257.20 × 1,239,883,824.16
  4. Step 4: Simplify right side
    1,440,485,529.84x = 2,463,368,023,875,955,712
  5. Step 5: Solve for x
    x = 2,463,368,023,875,955,712/1,440,485,529.84
  6. Step 6: Final answer
    x = 1,710,095,639.87

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Double scale
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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.