Home / 30,555,656.38-42,159,424.83-19,388,077.58

Finding the Fourth Proportional to 30,555,656.38, 42,159,424.83 and 19,388,077.58

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Solution

The fourth proportional to 30,555,656.38, 42,159,424.83 and 19,388,077.58 is: 26,750,863.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,555,656.38 : 42,159,424.83 = 19,388,077.58 : x
  2. Step 2: Convert to fraction form
    30,555,656.38/42,159,424.83 = 19,388,077.58/x
  3. Step 3: Cross multiply
    30,555,656.38x = 42,159,424.83 × 19,388,077.58
  4. Step 4: Simplify right side
    30,555,656.38x = 817,390,199,364,911.62
  5. Step 5: Solve for x
    x = 817,390,199,364,911.62/30,555,656.38
  6. Step 6: Final answer
    x = 26,750,863.71

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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.