Home / 1,190,390,539.31-1,784,586,990.13-526,297,340.15

Finding the Fourth Proportional to 1,190,390,539.31, 1,784,586,990.13 and 526,297,340.15

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Solution

The fourth proportional to 1,190,390,539.31, 1,784,586,990.13 and 526,297,340.15 is: 789,004,410.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,390,539.31 : 1,784,586,990.13 = 526,297,340.15 : x
  2. Step 2: Convert to fraction form
    1,190,390,539.31/1,784,586,990.13 = 526,297,340.15/x
  3. Step 3: Cross multiply
    1,190,390,539.31x = 1,784,586,990.13 × 526,297,340.15
  4. Step 4: Simplify right side
    1,190,390,539.31x = 939,223,386,171,713,280
  5. Step 5: Solve for x
    x = 939,223,386,171,713,280/1,190,390,539.31
  6. Step 6: Final answer
    x = 789,004,410.87

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Double scale
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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.