Home / 57,082,904.54-78,774,458.52-30,977,421.82

Finding the Fourth Proportional to 57,082,904.54, 78,774,458.52 and 30,977,421.82

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Solution

The fourth proportional to 57,082,904.54, 78,774,458.52 and 30,977,421.82 is: 42,748,869.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,082,904.54 : 78,774,458.52 = 30,977,421.82 : x
  2. Step 2: Convert to fraction form
    57,082,904.54/78,774,458.52 = 30,977,421.82/x
  3. Step 3: Cross multiply
    57,082,904.54x = 78,774,458.52 × 30,977,421.82
  4. Step 4: Simplify right side
    57,082,904.54x = 2,440,229,630,216,133
  5. Step 5: Solve for x
    x = 2,440,229,630,216,133/57,082,904.54
  6. Step 6: Final answer
    x = 42,748,869.38

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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.