Home / 938,055,858.42-1,406,168,773.83-446,637,089.64

Finding the Fourth Proportional to 938,055,858.42, 1,406,168,773.83 and 446,637,089.64

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Solution

The fourth proportional to 938,055,858.42, 1,406,168,773.83 and 446,637,089.64 is: 669,519,968.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,055,858.42 : 1,406,168,773.83 = 446,637,089.64 : x
  2. Step 2: Convert to fraction form
    938,055,858.42/1,406,168,773.83 = 446,637,089.64/x
  3. Step 3: Cross multiply
    938,055,858.42x = 1,406,168,773.83 × 446,637,089.64
  4. Step 4: Simplify right side
    938,055,858.42x = 628,047,128,686,078,592
  5. Step 5: Solve for x
    x = 628,047,128,686,078,592/938,055,858.42
  6. Step 6: Final answer
    x = 669,519,968.40

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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.