Home / 76,431,930.90-105,484,777.65-45,492,198.90

Finding the Fourth Proportional to 76,431,930.90, 105,484,777.65 and 45,492,198.90

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Solution

The fourth proportional to 76,431,930.90, 105,484,777.65 and 45,492,198.90 is: 62,784,420.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,431,930.90 : 105,484,777.65 = 45,492,198.90 : x
  2. Step 2: Convert to fraction form
    76,431,930.90/105,484,777.65 = 45,492,198.90/x
  3. Step 3: Cross multiply
    76,431,930.90x = 105,484,777.65 × 45,492,198.90
  4. Step 4: Simplify right side
    76,431,930.90x = 4,798,734,485,776,075
  5. Step 5: Solve for x
    x = 4,798,734,485,776,075/76,431,930.90
  6. Step 6: Final answer
    x = 62,784,420.45

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1.5x scale

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.