Home / 513,196,013.72-769,870,840.93-185,748,139.76

Finding the Fourth Proportional to 513,196,013.72, 769,870,840.93 and 185,748,139.76

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Solution

The fourth proportional to 513,196,013.72, 769,870,840.93 and 185,748,139.76 is: 278,650,014.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,196,013.72 : 769,870,840.93 = 185,748,139.76 : x
  2. Step 2: Convert to fraction form
    513,196,013.72/769,870,840.93 = 185,748,139.76/x
  3. Step 3: Cross multiply
    513,196,013.72x = 769,870,840.93 × 185,748,139.76
  4. Step 4: Simplify right side
    513,196,013.72x = 143,002,076,558,114,288
  5. Step 5: Solve for x
    x = 143,002,076,558,114,288/513,196,013.72
  6. Step 6: Final answer
    x = 278,650,014.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.