Home / 1,226,668,061.71-1,840,537,290.92-429,557,309.17

Finding the Fourth Proportional to 1,226,668,061.71, 1,840,537,290.92 and 429,557,309.17

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Solution

The fourth proportional to 1,226,668,061.71, 1,840,537,290.92 and 429,557,309.17 is: 644,523,380.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,226,668,061.71 : 1,840,537,290.92 = 429,557,309.17 : x
  2. Step 2: Convert to fraction form
    1,226,668,061.71/1,840,537,290.92 = 429,557,309.17/x
  3. Step 3: Cross multiply
    1,226,668,061.71x = 1,840,537,290.92 × 429,557,309.17
  4. Step 4: Simplify right side
    1,226,668,061.71x = 790,616,246,118,121,728
  5. Step 5: Solve for x
    x = 790,616,246,118,121,728/1,226,668,061.71
  6. Step 6: Final answer
    x = 644,523,380.69

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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.