Home / 675,286,080.10-931,992,661.37-389,121,932.85

Finding the Fourth Proportional to 675,286,080.10, 931,992,661.37 and 389,121,932.85

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Solution

The fourth proportional to 675,286,080.10, 931,992,661.37 and 389,121,932.85 is: 537,044,663.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,286,080.10 : 931,992,661.37 = 389,121,932.85 : x
  2. Step 2: Convert to fraction form
    675,286,080.10/931,992,661.37 = 389,121,932.85/x
  3. Step 3: Cross multiply
    675,286,080.10x = 931,992,661.37 × 389,121,932.85
  4. Step 4: Simplify right side
    675,286,080.10x = 362,658,785,791,787,712
  5. Step 5: Solve for x
    x = 362,658,785,791,787,712/675,286,080.10
  6. Step 6: Final answer
    x = 537,044,663.71

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1.5x scale

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.