Home / 3,129,788,118.32-4,319,204,800.68-1,720,066,464.08

Finding the Fourth Proportional to 3,129,788,118.32, 4,319,204,800.68 and 1,720,066,464.08

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Solution

The fourth proportional to 3,129,788,118.32, 4,319,204,800.68 and 1,720,066,464.08 is: 2,373,745,138.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,129,788,118.32 : 4,319,204,800.68 = 1,720,066,464.08 : x
  2. Step 2: Convert to fraction form
    3,129,788,118.32/4,319,204,800.68 = 1,720,066,464.08/x
  3. Step 3: Cross multiply
    3,129,788,118.32x = 4,319,204,800.68 × 1,720,066,464.08
  4. Step 4: Simplify right side
    3,129,788,118.32x = 7,429,319,329,143,009,280
  5. Step 5: Solve for x
    x = 7,429,319,329,143,009,280/3,129,788,118.32
  6. Step 6: Final answer
    x = 2,373,745,138.10

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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.