Home / 686,086,031.44-946,798,003.08-372,819,500.16

Finding the Fourth Proportional to 686,086,031.44, 946,798,003.08 and 372,819,500.16

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Solution

The fourth proportional to 686,086,031.44, 946,798,003.08 and 372,819,500.16 is: 514,490,518.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,086,031.44 : 946,798,003.08 = 372,819,500.16 : x
  2. Step 2: Convert to fraction form
    686,086,031.44/946,798,003.08 = 372,819,500.16/x
  3. Step 3: Cross multiply
    686,086,031.44x = 946,798,003.08 × 372,819,500.16
  4. Step 4: Simplify right side
    686,086,031.44x = 352,984,758,260,771,776
  5. Step 5: Solve for x
    x = 352,984,758,260,771,776/686,086,031.44
  6. Step 6: Final answer
    x = 514,490,518.81

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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.