Home / 84,765,389.75-127,167,038.63-30,912,701.75

Finding the Fourth Proportional to 84,765,389.75, 127,167,038.63 and 30,912,701.75

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Solution

The fourth proportional to 84,765,389.75, 127,167,038.63 and 30,912,701.75 is: 46,375,964.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,765,389.75 : 127,167,038.63 = 30,912,701.75 : x
  2. Step 2: Convert to fraction form
    84,765,389.75/127,167,038.63 = 30,912,701.75/x
  3. Step 3: Cross multiply
    84,765,389.75x = 127,167,038.63 × 30,912,701.75
  4. Step 4: Simplify right side
    84,765,389.75x = 3,931,076,737,445,355
  5. Step 5: Solve for x
    x = 3,931,076,737,445,355/84,765,389.75
  6. Step 6: Final answer
    x = 46,375,964.87

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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.