Home / 57,004,407.20-78,663,974.40-30,898,364.51

Finding the Fourth Proportional to 57,004,407.20, 78,663,974.40 and 30,898,364.51

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Solution

The fourth proportional to 57,004,407.20, 78,663,974.40 and 30,898,364.51 is: 42,638,600.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,004,407.20 : 78,663,974.40 = 30,898,364.51 : x
  2. Step 2: Convert to fraction form
    57,004,407.20/78,663,974.40 = 30,898,364.51/x
  3. Step 3: Cross multiply
    57,004,407.20x = 78,663,974.40 × 30,898,364.51
  4. Step 4: Simplify right side
    57,004,407.20x = 2,430,588,155,013,168.50
  5. Step 5: Solve for x
    x = 2,430,588,155,013,168.50/57,004,407.20
  6. Step 6: Final answer
    x = 42,638,600.67

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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.