Home / 686,558,749.24-947,444,390.41-373,292,963.20

Finding the Fourth Proportional to 686,558,749.24, 947,444,390.41 and 373,292,963.20

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Solution

The fourth proportional to 686,558,749.24, 947,444,390.41 and 373,292,963.20 is: 515,140,655.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,558,749.24 : 947,444,390.41 = 373,292,963.20 : x
  2. Step 2: Convert to fraction form
    686,558,749.24/947,444,390.41 = 373,292,963.20/x
  3. Step 3: Cross multiply
    686,558,749.24x = 947,444,390.41 × 373,292,963.20
  4. Step 4: Simplify right side
    686,558,749.24x = 353,674,323,956,762,880
  5. Step 5: Solve for x
    x = 353,674,323,956,762,880/686,558,749.24
  6. Step 6: Final answer
    x = 515,140,655.26

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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.