Home / 70,630,001.40-105,945,002.10-66,661,908.60

Finding the Fourth Proportional to 70,630,001.40, 105,945,002.10 and 66,661,908.60

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Solution

The fourth proportional to 70,630,001.40, 105,945,002.10 and 66,661,908.60 is: 99,992,862.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,630,001.40 : 105,945,002.10 = 66,661,908.60 : x
  2. Step 2: Convert to fraction form
    70,630,001.40/105,945,002.10 = 66,661,908.60/x
  3. Step 3: Cross multiply
    70,630,001.40x = 105,945,002.10 × 66,661,908.60
  4. Step 4: Simplify right side
    70,630,001.40x = 7,062,496,046,617,008
  5. Step 5: Solve for x
    x = 7,062,496,046,617,008/70,630,001.40
  6. Step 6: Final answer
    x = 99,992,862.90

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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.