Home / 929,044,328.11-1,281,428,436.78-611,403,370.81

Finding the Fourth Proportional to 929,044,328.11, 1,281,428,436.78 and 611,403,370.81

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Solution

The fourth proportional to 929,044,328.11, 1,281,428,436.78 and 611,403,370.81 is: 843,307,086.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,044,328.11 : 1,281,428,436.78 = 611,403,370.81 : x
  2. Step 2: Convert to fraction form
    929,044,328.11/1,281,428,436.78 = 611,403,370.81/x
  3. Step 3: Cross multiply
    929,044,328.11x = 1,281,428,436.78 × 611,403,370.81
  4. Step 4: Simplify right side
    929,044,328.11x = 783,469,665,695,877,376
  5. Step 5: Solve for x
    x = 783,469,665,695,877,376/929,044,328.11
  6. Step 6: Final answer
    x = 843,307,086.64

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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.