Home / 70,431,950.60-105,647,925.90-19,319,136.20

Finding the Fourth Proportional to 70,431,950.60, 105,647,925.90 and 19,319,136.20

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Solution

The fourth proportional to 70,431,950.60, 105,647,925.90 and 19,319,136.20 is: 28,978,704.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,431,950.60 : 105,647,925.90 = 19,319,136.20 : x
  2. Step 2: Convert to fraction form
    70,431,950.60/105,647,925.90 = 19,319,136.20/x
  3. Step 3: Cross multiply
    70,431,950.60x = 105,647,925.90 × 19,319,136.20
  4. Step 4: Simplify right side
    70,431,950.60x = 2,041,026,669,709,607.50
  5. Step 5: Solve for x
    x = 2,041,026,669,709,607.50/70,431,950.60
  6. Step 6: Final answer
    x = 28,978,704.30

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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.