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Finding the Fourth Proportional to 562,074,239.60, 775,645,791.48 and 311,189,813

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Solution

The fourth proportional to 562,074,239.60, 775,645,791.48 and 311,189,813 is: 429,432,718.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,074,239.60 : 775,645,791.48 = 311,189,813 : x
  2. Step 2: Convert to fraction form
    562,074,239.60/775,645,791.48 = 311,189,813/x
  3. Step 3: Cross multiply
    562,074,239.60x = 775,645,791.48 × 311,189,813
  4. Step 4: Simplify right side
    562,074,239.60x = 241,373,068,804,898,208
  5. Step 5: Solve for x
    x = 241,373,068,804,898,208/562,074,239.60
  6. Step 6: Final answer
    x = 429,432,718.67

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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.