Home / 1,291,580,386.56-1,937,678,495.40-418,182,017.85

Finding the Fourth Proportional to 1,291,580,386.56, 1,937,678,495.40 and 418,182,017.85

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Solution

The fourth proportional to 1,291,580,386.56, 1,937,678,495.40 and 418,182,017.85 is: 627,372,722.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,580,386.56 : 1,937,678,495.40 = 418,182,017.85 : x
  2. Step 2: Convert to fraction form
    1,291,580,386.56/1,937,678,495.40 = 418,182,017.85/x
  3. Step 3: Cross multiply
    1,291,580,386.56x = 1,937,678,495.40 × 418,182,017.85
  4. Step 4: Simplify right side
    1,291,580,386.56x = 810,302,303,150,924,032
  5. Step 5: Solve for x
    x = 810,302,303,150,924,032/1,291,580,386.56
  6. Step 6: Final answer
    x = 627,372,722.27

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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.