Home / 686,558,751.74-947,444,393.85-373,292,965.70

Finding the Fourth Proportional to 686,558,751.74, 947,444,393.85 and 373,292,965.70

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Solution

The fourth proportional to 686,558,751.74, 947,444,393.85 and 373,292,965.70 is: 515,140,658.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,558,751.74 : 947,444,393.85 = 373,292,965.70 : x
  2. Step 2: Convert to fraction form
    686,558,751.74/947,444,393.85 = 373,292,965.70/x
  3. Step 3: Cross multiply
    686,558,751.74x = 947,444,393.85 × 373,292,965.70
  4. Step 4: Simplify right side
    686,558,751.74x = 353,674,327,611,368,128
  5. Step 5: Solve for x
    x = 353,674,327,611,368,128/686,558,751.74
  6. Step 6: Final answer
    x = 515,140,658.71

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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.