Home / 1,226,695,798,916.80-1,840,081,184,316.50-420,851,435,734.72

Finding the Fourth Proportional to 1,226,695,798,916.80, 1,840,081,184,316.50 and 420,851,435,734.72

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Solution

The fourth proportional to 1,226,695,798,916.80, 1,840,081,184,316.50 and 420,851,435,734.72 is: 631,290,014,176.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,226,695,798,916.80 : 1,840,081,184,316.50 = 420,851,435,734.72 : x
  2. Step 2: Convert to fraction form
    1,226,695,798,916.80/1,840,081,184,316.50 = 420,851,435,734.72/x
  3. Step 3: Cross multiply
    1,226,695,798,916.80x = 1,840,081,184,316.50 × 420,851,435,734.72
  4. Step 4: Simplify right side
    1,226,695,798,916.80x = 774,400,808,288,042,946,134,016
  5. Step 5: Solve for x
    x = 774,400,808,288,042,946,134,016/1,226,695,798,916.80
  6. Step 6: Final answer
    x = 631,290,014,176.18

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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.