Home / 531,780,614.40-733,979,690.88-311,834,899.20

Finding the Fourth Proportional to 531,780,614.40, 733,979,690.88 and 311,834,899.20

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Solution

The fourth proportional to 531,780,614.40, 733,979,690.88 and 311,834,899.20 is: 430,403,961.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,780,614.40 : 733,979,690.88 = 311,834,899.20 : x
  2. Step 2: Convert to fraction form
    531,780,614.40/733,979,690.88 = 311,834,899.20/x
  3. Step 3: Cross multiply
    531,780,614.40x = 733,979,690.88 × 311,834,899.20
  4. Step 4: Simplify right side
    531,780,614.40x = 228,880,482,920,411,936
  5. Step 5: Solve for x
    x = 228,880,482,920,411,936/531,780,614.40
  6. Step 6: Final answer
    x = 430,403,961.19

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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.