Home / 30,976,346.70-42,756,369.62-20,663,045.19

Finding the Fourth Proportional to 30,976,346.70, 42,756,369.62 and 20,663,045.19

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Solution

The fourth proportional to 30,976,346.70, 42,756,369.62 and 20,663,045.19 is: 28,521,013.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,976,346.70 : 42,756,369.62 = 20,663,045.19 : x
  2. Step 2: Convert to fraction form
    30,976,346.70/42,756,369.62 = 20,663,045.19/x
  3. Step 3: Cross multiply
    30,976,346.70x = 42,756,369.62 × 20,663,045.19
  4. Step 4: Simplify right side
    30,976,346.70x = 883,476,797,515,088
  5. Step 5: Solve for x
    x = 883,476,797,515,088/30,976,346.70
  6. Step 6: Final answer
    x = 28,521,013.34

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1.5x scale

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.