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Finding the Fourth Proportional to 308,353,138.56, 462,556,895.04 and 87,026,449.92

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Solution

The fourth proportional to 308,353,138.56, 462,556,895.04 and 87,026,449.92 is: 130,547,347.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,353,138.56 : 462,556,895.04 = 87,026,449.92 : x
  2. Step 2: Convert to fraction form
    308,353,138.56/462,556,895.04 = 87,026,449.92/x
  3. Step 3: Cross multiply
    308,353,138.56x = 462,556,895.04 × 87,026,449.92
  4. Step 4: Simplify right side
    308,353,138.56x = 40,254,684,461,349,256
  5. Step 5: Solve for x
    x = 40,254,684,461,349,256/308,353,138.56
  6. Step 6: Final answer
    x = 130,547,347.92

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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.