Home / 1,383,443,970.72-1,908,964,127.34-826,408,772.16

Finding the Fourth Proportional to 1,383,443,970.72, 1,908,964,127.34 and 826,408,772.16

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Solution

The fourth proportional to 1,383,443,970.72, 1,908,964,127.34 and 826,408,772.16 is: 1,140,331,472.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,443,970.72 : 1,908,964,127.34 = 826,408,772.16 : x
  2. Step 2: Convert to fraction form
    1,383,443,970.72/1,908,964,127.34 = 826,408,772.16/x
  3. Step 3: Cross multiply
    1,383,443,970.72x = 1,908,964,127.34 × 826,408,772.16
  4. Step 4: Simplify right side
    1,383,443,970.72x = 1,577,584,700,572,535,040
  5. Step 5: Solve for x
    x = 1,577,584,700,572,535,040/1,383,443,970.72
  6. Step 6: Final answer
    x = 1,140,331,472.73

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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.