Home / 261,698,414.67-361,143,869.11-142,621,035.10

Finding the Fourth Proportional to 261,698,414.67, 361,143,869.11 and 142,621,035.10

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Solution

The fourth proportional to 261,698,414.67, 361,143,869.11 and 142,621,035.10 is: 196,817,059.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,698,414.67 : 361,143,869.11 = 142,621,035.10 : x
  2. Step 2: Convert to fraction form
    261,698,414.67/361,143,869.11 = 142,621,035.10/x
  3. Step 3: Cross multiply
    261,698,414.67x = 361,143,869.11 × 142,621,035.10
  4. Step 4: Simplify right side
    261,698,414.67x = 51,506,712,431,227,704
  5. Step 5: Solve for x
    x = 51,506,712,431,227,704/261,698,414.67
  6. Step 6: Final answer
    x = 196,817,059.42

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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.