Home / 85,248,310.40-127,872,465.60-31,384,476.80

Finding the Fourth Proportional to 85,248,310.40, 127,872,465.60 and 31,384,476.80

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Solution

The fourth proportional to 85,248,310.40, 127,872,465.60 and 31,384,476.80 is: 47,076,715.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,248,310.40 : 127,872,465.60 = 31,384,476.80 : x
  2. Step 2: Convert to fraction form
    85,248,310.40/127,872,465.60 = 31,384,476.80/x
  3. Step 3: Cross multiply
    85,248,310.40x = 127,872,465.60 × 31,384,476.80
  4. Step 4: Simplify right side
    85,248,310.40x = 4,013,210,429,981,998
  5. Step 5: Solve for x
    x = 4,013,210,429,981,998/85,248,310.40
  6. Step 6: Final answer
    x = 47,076,715.20

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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.