Home / 509,724,115.10-763,452,431.85-419,024,851.10

Finding the Fourth Proportional to 509,724,115.10, 763,452,431.85 and 419,024,851.10

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Solution

The fourth proportional to 509,724,115.10, 763,452,431.85 and 419,024,851.10 is: 627,605,271.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,724,115.10 : 763,452,431.85 = 419,024,851.10 : x
  2. Step 2: Convert to fraction form
    509,724,115.10/763,452,431.85 = 419,024,851.10/x
  3. Step 3: Cross multiply
    509,724,115.10x = 763,452,431.85 × 419,024,851.10
  4. Step 4: Simplify right side
    509,724,115.10x = 319,905,541,577,879,168
  5. Step 5: Solve for x
    x = 319,905,541,577,879,168/509,724,115.10
  6. Step 6: Final answer
    x = 627,605,271.36

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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.