Home / 13,831,783.50-19,088,058.06-7,720,212

Finding the Fourth Proportional to 13,831,783.50, 19,088,058.06 and 7,720,212

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Solution

The fourth proportional to 13,831,783.50, 19,088,058.06 and 7,720,212 is: 10,654,002.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,831,783.50 : 19,088,058.06 = 7,720,212 : x
  2. Step 2: Convert to fraction form
    13,831,783.50/19,088,058.06 = 7,720,212/x
  3. Step 3: Cross multiply
    13,831,783.50x = 19,088,058.06 × 7,720,212
  4. Step 4: Simplify right side
    13,831,783.50x = 147,363,854,891,508.72
  5. Step 5: Solve for x
    x = 147,363,854,891,508.72/13,831,783.50
  6. Step 6: Final answer
    x = 10,654,002.42

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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.