Home / 57,004,406.46-78,663,973.38-30,898,363.77

Finding the Fourth Proportional to 57,004,406.46, 78,663,973.38 and 30,898,363.77

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Solution

The fourth proportional to 57,004,406.46, 78,663,973.38 and 30,898,363.77 is: 42,638,599.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,004,406.46 : 78,663,973.38 = 30,898,363.77 : x
  2. Step 2: Convert to fraction form
    57,004,406.46/78,663,973.38 = 30,898,363.77/x
  3. Step 3: Cross multiply
    57,004,406.46x = 78,663,973.38 × 30,898,363.77
  4. Step 4: Simplify right side
    57,004,406.46x = 2,430,588,065,088,836.50
  5. Step 5: Solve for x
    x = 2,430,588,065,088,836.50/57,004,406.46
  6. Step 6: Final answer
    x = 42,638,599.65

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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.