Home / 457,788,462.60-686,682,693.90-312,669,640.20

Finding the Fourth Proportional to 457,788,462.60, 686,682,693.90 and 312,669,640.20

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Solution

The fourth proportional to 457,788,462.60, 686,682,693.90 and 312,669,640.20 is: 469,004,460.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,788,462.60 : 686,682,693.90 = 312,669,640.20 : x
  2. Step 2: Convert to fraction form
    457,788,462.60/686,682,693.90 = 312,669,640.20/x
  3. Step 3: Cross multiply
    457,788,462.60x = 686,682,693.90 × 312,669,640.20
  4. Step 4: Simplify right side
    457,788,462.60x = 214,704,830,833,279,712
  5. Step 5: Solve for x
    x = 214,704,830,833,279,712/457,788,462.60
  6. Step 6: Final answer
    x = 469,004,460.30

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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.