Home / 74,905,745.40-112,358,618.10-21,053,057.40

Finding the Fourth Proportional to 74,905,745.40, 112,358,618.10 and 21,053,057.40

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Solution

The fourth proportional to 74,905,745.40, 112,358,618.10 and 21,053,057.40 is: 31,579,586.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,905,745.40 : 112,358,618.10 = 21,053,057.40 : x
  2. Step 2: Convert to fraction form
    74,905,745.40/112,358,618.10 = 21,053,057.40/x
  3. Step 3: Cross multiply
    74,905,745.40x = 112,358,618.10 × 21,053,057.40
  4. Step 4: Simplify right side
    74,905,745.40x = 2,365,492,436,243,978.50
  5. Step 5: Solve for x
    x = 2,365,492,436,243,978.50/74,905,745.40
  6. Step 6: Final answer
    x = 31,579,586.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.