Home / 57,004,400.61-78,663,965.34-30,898,357.93

Finding the Fourth Proportional to 57,004,400.61, 78,663,965.34 and 30,898,357.93

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Solution

The fourth proportional to 57,004,400.61, 78,663,965.34 and 30,898,357.93 is: 42,638,591.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,004,400.61 : 78,663,965.34 = 30,898,357.93 : x
  2. Step 2: Convert to fraction form
    57,004,400.61/78,663,965.34 = 30,898,357.93/x
  3. Step 3: Cross multiply
    57,004,400.61x = 78,663,965.34 × 30,898,357.93
  4. Step 4: Simplify right side
    57,004,400.61x = 2,430,587,357,268,434
  5. Step 5: Solve for x
    x = 2,430,587,357,268,434/57,004,400.61
  6. Step 6: Final answer
    x = 42,638,591.60

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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.