Home / 531,779,138.35-733,977,654.99-311,833,423.15

Finding the Fourth Proportional to 531,779,138.35, 733,977,654.99 and 311,833,423.15

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Solution

The fourth proportional to 531,779,138.35, 733,977,654.99 and 311,833,423.15 is: 430,401,924.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,779,138.35 : 733,977,654.99 = 311,833,423.15 : x
  2. Step 2: Convert to fraction form
    531,779,138.35/733,977,654.99 = 311,833,423.15/x
  3. Step 3: Cross multiply
    531,779,138.35x = 733,977,654.99 × 311,833,423.15
  4. Step 4: Simplify right side
    531,779,138.35x = 228,878,764,671,141,376
  5. Step 5: Solve for x
    x = 228,878,764,671,141,376/531,779,138.35
  6. Step 6: Final answer
    x = 430,401,924.72

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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.