Home / 531,780,909.96-733,980,099.76-311,835,194.76

Finding the Fourth Proportional to 531,780,909.96, 733,980,099.76 and 311,835,194.76

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Solution

The fourth proportional to 531,780,909.96, 733,980,099.76 and 311,835,194.76 is: 430,404,369.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,780,909.96 : 733,980,099.76 = 311,835,194.76 : x
  2. Step 2: Convert to fraction form
    531,780,909.96/733,980,099.76 = 311,835,194.76/x
  3. Step 3: Cross multiply
    531,780,909.96x = 733,980,099.76 × 311,835,194.76
  4. Step 4: Simplify right side
    531,780,909.96x = 228,880,827,358,623,808
  5. Step 5: Solve for x
    x = 228,880,827,358,623,808/531,780,909.96
  6. Step 6: Final answer
    x = 430,404,369.68

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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.