Home / 85,248,308.40-127,872,462.60-31,384,474.80

Finding the Fourth Proportional to 85,248,308.40, 127,872,462.60 and 31,384,474.80

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Solution

The fourth proportional to 85,248,308.40, 127,872,462.60 and 31,384,474.80 is: 47,076,712.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,248,308.40 : 127,872,462.60 = 31,384,474.80 : x
  2. Step 2: Convert to fraction form
    85,248,308.40/127,872,462.60 = 31,384,474.80/x
  3. Step 3: Cross multiply
    85,248,308.40x = 127,872,462.60 × 31,384,474.80
  4. Step 4: Simplify right side
    85,248,308.40x = 4,013,210,080,083,642.50
  5. Step 5: Solve for x
    x = 4,013,210,080,083,642.50/85,248,308.40
  6. Step 6: Final answer
    x = 47,076,712.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.