Home / 30,866,994-42,593,381.28-17,818,456.68

Finding the Fourth Proportional to 30,866,994, 42,593,381.28 and 17,818,456.68

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Solution

The fourth proportional to 30,866,994, 42,593,381.28 and 17,818,456.68 is: 24,587,697.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,866,994 : 42,593,381.28 = 17,818,456.68 : x
  2. Step 2: Convert to fraction form
    30,866,994/42,593,381.28 = 17,818,456.68/x
  3. Step 3: Cross multiply
    30,866,994x = 42,593,381.28 × 17,818,456.68
  4. Step 4: Simplify right side
    30,866,994x = 758,948,319,192,403
  5. Step 5: Solve for x
    x = 758,948,319,192,403/30,866,994
  6. Step 6: Final answer
    x = 24,587,697.76

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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.