Home / 12,920,924.40-17,830,072.26-7,119,381.48

Finding the Fourth Proportional to 12,920,924.40, 17,830,072.26 and 7,119,381.48

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Solution

The fourth proportional to 12,920,924.40, 17,830,072.26 and 7,119,381.48 is: 9,824,303.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,920,924.40 : 17,830,072.26 = 7,119,381.48 : x
  2. Step 2: Convert to fraction form
    12,920,924.40/17,830,072.26 = 7,119,381.48/x
  3. Step 3: Cross multiply
    12,920,924.40x = 17,830,072.26 × 7,119,381.48
  4. Step 4: Simplify right side
    12,920,924.40x = 126,939,086,234,905.77
  5. Step 5: Solve for x
    x = 126,939,086,234,905.77/12,920,924.40
  6. Step 6: Final answer
    x = 9,824,303.77

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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.