Home / 30,579,971.82-42,200,348.89-16,828,935.94

Finding the Fourth Proportional to 30,579,971.82, 42,200,348.89 and 16,828,935.94

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Solution

The fourth proportional to 30,579,971.82, 42,200,348.89 and 16,828,935.94 is: 23,223,924.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,579,971.82 : 42,200,348.89 = 16,828,935.94 : x
  2. Step 2: Convert to fraction form
    30,579,971.82/42,200,348.89 = 16,828,935.94/x
  3. Step 3: Cross multiply
    30,579,971.82x = 42,200,348.89 × 16,828,935.94
  4. Step 4: Simplify right side
    30,579,971.82x = 710,186,968,115,460.12
  5. Step 5: Solve for x
    x = 710,186,968,115,460.12/30,579,971.82
  6. Step 6: Final answer
    x = 23,223,924.87

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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.