Home / 1,620,450,848.79-2,236,224,440.45-877,894,911.54

Finding the Fourth Proportional to 1,620,450,848.79, 2,236,224,440.45 and 877,894,911.54

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Solution

The fourth proportional to 1,620,450,848.79, 2,236,224,440.45 and 877,894,911.54 is: 1,211,496,207.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,620,450,848.79 : 2,236,224,440.45 = 877,894,911.54 : x
  2. Step 2: Convert to fraction form
    1,620,450,848.79/2,236,224,440.45 = 877,894,911.54/x
  3. Step 3: Cross multiply
    1,620,450,848.79x = 2,236,224,440.45 × 877,894,911.54
  4. Step 4: Simplify right side
    1,620,450,848.79x = 1,963,170,057,328,049,408
  5. Step 5: Solve for x
    x = 1,963,170,057,328,049,408/1,620,450,848.79
  6. Step 6: Final answer
    x = 1,211,496,207.24

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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.