Home / 878,233,207.56-1,211,950,519.47-501,885,485.67

Finding the Fourth Proportional to 878,233,207.56, 1,211,950,519.47 and 501,885,485.67

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Solution

The fourth proportional to 878,233,207.56, 1,211,950,519.47 and 501,885,485.67 is: 692,595,508.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,233,207.56 : 1,211,950,519.47 = 501,885,485.67 : x
  2. Step 2: Convert to fraction form
    878,233,207.56/1,211,950,519.47 = 501,885,485.67/x
  3. Step 3: Cross multiply
    878,233,207.56x = 1,211,950,519.47 × 501,885,485.67
  4. Step 4: Simplify right side
    878,233,207.56x = 608,260,375,072,209,792
  5. Step 5: Solve for x
    x = 608,260,375,072,209,792/878,233,207.56
  6. Step 6: Final answer
    x = 692,595,508.61

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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.