Home / 354,294,995.40-531,442,493.10-312,683,165.10

Finding the Fourth Proportional to 354,294,995.40, 531,442,493.10 and 312,683,165.10

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Solution

The fourth proportional to 354,294,995.40, 531,442,493.10 and 312,683,165.10 is: 469,024,747.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,294,995.40 : 531,442,493.10 = 312,683,165.10 : x
  2. Step 2: Convert to fraction form
    354,294,995.40/531,442,493.10 = 312,683,165.10/x
  3. Step 3: Cross multiply
    354,294,995.40x = 531,442,493.10 × 312,683,165.10
  4. Step 4: Simplify right side
    354,294,995.40x = 166,173,120,811,142,944
  5. Step 5: Solve for x
    x = 166,173,120,811,142,944/354,294,995.40
  6. Step 6: Final answer
    x = 469,024,747.65

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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.