Home / 70,069,680-105,104,475.36-51,021,609.60

Finding the Fourth Proportional to 70,069,680, 105,104,475.36 and 51,021,609.60

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Solution

The fourth proportional to 70,069,680, 105,104,475.36 and 51,021,609.60 is: 76,532,381.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,069,680 : 105,104,475.36 = 51,021,609.60 : x
  2. Step 2: Convert to fraction form
    70,069,680/105,104,475.36 = 51,021,609.60/x
  3. Step 3: Cross multiply
    70,069,680x = 105,104,475.36 × 51,021,609.60
  4. Step 4: Simplify right side
    70,069,680x = 5,362,599,509,030,740
  5. Step 5: Solve for x
    x = 5,362,599,509,030,740/70,069,680
  6. Step 6: Final answer
    x = 76,532,381.90

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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.