Home / 686,348,526.26-1,028,661,116.85-371,201,992.67

Finding the Fourth Proportional to 686,348,526.26, 1,028,661,116.85 and 371,201,992.67

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Solution

The fourth proportional to 686,348,526.26, 1,028,661,116.85 and 371,201,992.67 is: 556,336,965.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,348,526.26 : 1,028,661,116.85 = 371,201,992.67 : x
  2. Step 2: Convert to fraction form
    686,348,526.26/1,028,661,116.85 = 371,201,992.67/x
  3. Step 3: Cross multiply
    686,348,526.26x = 1,028,661,116.85 × 371,201,992.67
  4. Step 4: Simplify right side
    686,348,526.26x = 381,841,056,356,867,712
  5. Step 5: Solve for x
    x = 381,841,056,356,867,712/686,348,526.26
  6. Step 6: Final answer
    x = 556,336,965.47

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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.