Home / 531,205,200.90-796,807,801.35-420,240,320.10

Finding the Fourth Proportional to 531,205,200.90, 796,807,801.35 and 420,240,320.10

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Solution

The fourth proportional to 531,205,200.90, 796,807,801.35 and 420,240,320.10 is: 630,360,480.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,205,200.90 : 796,807,801.35 = 420,240,320.10 : x
  2. Step 2: Convert to fraction form
    531,205,200.90/796,807,801.35 = 420,240,320.10/x
  3. Step 3: Cross multiply
    531,205,200.90x = 796,807,801.35 × 420,240,320.10
  4. Step 4: Simplify right side
    531,205,200.90x = 334,850,765,497,501,248
  5. Step 5: Solve for x
    x = 334,850,765,497,501,248/531,205,200.90
  6. Step 6: Final answer
    x = 630,360,480.15

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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.