Home / 30,276,139.36-41,781,112.56-19,411,123.04

Finding the Fourth Proportional to 30,276,139.36, 41,781,112.56 and 19,411,123.04

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Solution

The fourth proportional to 30,276,139.36, 41,781,112.56 and 19,411,123.04 is: 26,787,375.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,276,139.36 : 41,781,112.56 = 19,411,123.04 : x
  2. Step 2: Convert to fraction form
    30,276,139.36/41,781,112.56 = 19,411,123.04/x
  3. Step 3: Cross multiply
    30,276,139.36x = 41,781,112.56 × 19,411,123.04
  4. Step 4: Simplify right side
    30,276,139.36x = 811,018,316,650,249.38
  5. Step 5: Solve for x
    x = 811,018,316,650,249.38/30,276,139.36
  6. Step 6: Final answer
    x = 26,787,375.60

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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.