Home / 12,964,420.72-17,891,038.04-7,163,058.16

Finding the Fourth Proportional to 12,964,420.72, 17,891,038.04 and 7,163,058.16

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Solution

The fourth proportional to 12,964,420.72, 17,891,038.04 and 7,163,058.16 is: 9,885,096.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,964,420.72 : 17,891,038.04 = 7,163,058.16 : x
  2. Step 2: Convert to fraction form
    12,964,420.72/17,891,038.04 = 7,163,058.16/x
  3. Step 3: Cross multiply
    12,964,420.72x = 17,891,038.04 × 7,163,058.16
  4. Step 4: Simplify right side
    12,964,420.72x = 128,154,546,023,292.41
  5. Step 5: Solve for x
    x = 128,154,546,023,292.41/12,964,420.72
  6. Step 6: Final answer
    x = 9,885,096.20

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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.