Home / 30,502,043.82-42,077,256.14-19,477,201.86

Finding the Fourth Proportional to 30,502,043.82, 42,077,256.14 and 19,477,201.86

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Solution

The fourth proportional to 30,502,043.82, 42,077,256.14 and 19,477,201.86 is: 26,868,599.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,502,043.82 : 42,077,256.14 = 19,477,201.86 : x
  2. Step 2: Convert to fraction form
    30,502,043.82/42,077,256.14 = 19,477,201.86/x
  3. Step 3: Cross multiply
    30,502,043.82x = 42,077,256.14 × 19,477,201.86
  4. Step 4: Simplify right side
    30,502,043.82x = 819,547,211,347,112.50
  5. Step 5: Solve for x
    x = 819,547,211,347,112.50/30,502,043.82
  6. Step 6: Final answer
    x = 26,868,599.90

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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.