Home / 679,210,921.52-937,314,245.86-385,871,585.84

Finding the Fourth Proportional to 679,210,921.52, 937,314,245.86 and 385,871,585.84

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Solution

The fourth proportional to 679,210,921.52, 937,314,245.86 and 385,871,585.84 is: 532,504,591.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,210,921.52 : 937,314,245.86 = 385,871,585.84 : x
  2. Step 2: Convert to fraction form
    679,210,921.52/937,314,245.86 = 385,871,585.84/x
  3. Step 3: Cross multiply
    679,210,921.52x = 937,314,245.86 × 385,871,585.84
  4. Step 4: Simplify right side
    679,210,921.52x = 361,682,934,480,421,824
  5. Step 5: Solve for x
    x = 361,682,934,480,421,824/679,210,921.52
  6. Step 6: Final answer
    x = 532,504,591.76

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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.