Home / 1,089,549,611.87-1,634,313,647.63-499,172,389.66

Finding the Fourth Proportional to 1,089,549,611.87, 1,634,313,647.63 and 499,172,389.66

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Solution

The fourth proportional to 1,089,549,611.87, 1,634,313,647.63 and 499,172,389.66 is: 748,753,650.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,089,549,611.87 : 1,634,313,647.63 = 499,172,389.66 : x
  2. Step 2: Convert to fraction form
    1,089,549,611.87/1,634,313,647.63 = 499,172,389.66/x
  3. Step 3: Cross multiply
    1,089,549,611.87x = 1,634,313,647.63 × 499,172,389.66
  4. Step 4: Simplify right side
    1,089,549,611.87x = 815,804,248,941,418,368
  5. Step 5: Solve for x
    x = 815,804,248,941,418,368/1,089,549,611.87
  6. Step 6: Final answer
    x = 748,753,650.18

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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.