Home / 1,226,695,798,907.80-1,840,081,184,303.10-420,851,435,725.68

Finding the Fourth Proportional to 1,226,695,798,907.80, 1,840,081,184,303.10 and 420,851,435,725.68

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Solution

The fourth proportional to 1,226,695,798,907.80, 1,840,081,184,303.10 and 420,851,435,725.68 is: 631,290,014,162.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,226,695,798,907.80 : 1,840,081,184,303.10 = 420,851,435,725.68 : x
  2. Step 2: Convert to fraction form
    1,226,695,798,907.80/1,840,081,184,303.10 = 420,851,435,725.68/x
  3. Step 3: Cross multiply
    1,226,695,798,907.80x = 1,840,081,184,303.10 × 420,851,435,725.68
  4. Step 4: Simplify right side
    1,226,695,798,907.80x = 774,400,808,265,769,245,736,960
  5. Step 5: Solve for x
    x = 774,400,808,265,769,245,736,960/1,226,695,798,907.80
  6. Step 6: Final answer
    x = 631,290,014,162.65

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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.