Home / 531,205,205.40-796,807,808.10-420,240,324.60

Finding the Fourth Proportional to 531,205,205.40, 796,807,808.10 and 420,240,324.60

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Solution

The fourth proportional to 531,205,205.40, 796,807,808.10 and 420,240,324.60 is: 630,360,486.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,205,205.40 : 796,807,808.10 = 420,240,324.60 : x
  2. Step 2: Convert to fraction form
    531,205,205.40/796,807,808.10 = 420,240,324.60/x
  3. Step 3: Cross multiply
    531,205,205.40x = 796,807,808.10 × 420,240,324.60
  4. Step 4: Simplify right side
    531,205,205.40x = 334,850,771,919,758,528
  5. Step 5: Solve for x
    x = 334,850,771,919,758,528/531,205,205.40
  6. Step 6: Final answer
    x = 630,360,486.90

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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.