Home / 30,579,056.18-42,199,103.53-16,828,020.38

Finding the Fourth Proportional to 30,579,056.18, 42,199,103.53 and 16,828,020.38

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Solution

The fourth proportional to 30,579,056.18, 42,199,103.53 and 16,828,020.38 is: 23,222,671.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,579,056.18 : 42,199,103.53 = 16,828,020.38 : x
  2. Step 2: Convert to fraction form
    30,579,056.18/42,199,103.53 = 16,828,020.38/x
  3. Step 3: Cross multiply
    30,579,056.18x = 42,199,103.53 × 16,828,020.38
  4. Step 4: Simplify right side
    30,579,056.18x = 710,127,374,220,569.88
  5. Step 5: Solve for x
    x = 710,127,374,220,569.88/30,579,056.18
  6. Step 6: Final answer
    x = 23,222,671.43

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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.