Home / 217,454,574.40-326,181,861.60-207,376,878.40

Finding the Fourth Proportional to 217,454,574.40, 326,181,861.60 and 207,376,878.40

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Solution

The fourth proportional to 217,454,574.40, 326,181,861.60 and 207,376,878.40 is: 311,065,317.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,454,574.40 : 326,181,861.60 = 207,376,878.40 : x
  2. Step 2: Convert to fraction form
    217,454,574.40/326,181,861.60 = 207,376,878.40/x
  3. Step 3: Cross multiply
    217,454,574.40x = 326,181,861.60 × 207,376,878.40
  4. Step 4: Simplify right side
    217,454,574.40x = 67,642,576,249,308,840
  5. Step 5: Solve for x
    x = 67,642,576,249,308,840/217,454,574.40
  6. Step 6: Final answer
    x = 311,065,317.60

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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.