Home / 520,156,754.42-717,920,603.37-308,581,022.54

Finding the Fourth Proportional to 520,156,754.42, 717,920,603.37 and 308,581,022.54

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Solution

The fourth proportional to 520,156,754.42, 717,920,603.37 and 308,581,022.54 is: 425,903,676.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,156,754.42 : 717,920,603.37 = 308,581,022.54 : x
  2. Step 2: Convert to fraction form
    520,156,754.42/717,920,603.37 = 308,581,022.54/x
  3. Step 3: Cross multiply
    520,156,754.42x = 717,920,603.37 × 308,581,022.54
  4. Step 4: Simplify right side
    520,156,754.42x = 221,536,673,886,858,784
  5. Step 5: Solve for x
    x = 221,536,673,886,858,784/520,156,754.42
  6. Step 6: Final answer
    x = 425,903,676.16

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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.