Home / 51,357,971.28-70,866,434.82-31,230,702.18

Finding the Fourth Proportional to 51,357,971.28, 70,866,434.82 and 31,230,702.18

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Solution

The fourth proportional to 51,357,971.28, 70,866,434.82 and 31,230,702.18 is: 43,093,768.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,357,971.28 : 70,866,434.82 = 31,230,702.18 : x
  2. Step 2: Convert to fraction form
    51,357,971.28/70,866,434.82 = 31,230,702.18/x
  3. Step 3: Cross multiply
    51,357,971.28x = 70,866,434.82 × 31,230,702.18
  4. Step 4: Simplify right side
    51,357,971.28x = 2,213,208,520,421,801.75
  5. Step 5: Solve for x
    x = 2,213,208,520,421,801.75/51,357,971.28
  6. Step 6: Final answer
    x = 43,093,768.41

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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.