Home / 56,977,138.05-78,628,340.62-30,872,362.47

Finding the Fourth Proportional to 56,977,138.05, 78,628,340.62 and 30,872,362.47

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Solution

The fourth proportional to 56,977,138.05, 78,628,340.62 and 30,872,362.47 is: 42,603,800.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,977,138.05 : 78,628,340.62 = 30,872,362.47 : x
  2. Step 2: Convert to fraction form
    56,977,138.05/78,628,340.62 = 30,872,362.47/x
  3. Step 3: Cross multiply
    56,977,138.05x = 78,628,340.62 × 30,872,362.47
  4. Step 4: Simplify right side
    56,977,138.05x = 2,427,442,632,035,264.50
  5. Step 5: Solve for x
    x = 2,427,442,632,035,264.50/56,977,138.05
  6. Step 6: Final answer
    x = 42,603,800.67

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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.