Home / 380,094,784.49-570,357,856.22-205,215,489.65

Finding the Fourth Proportional to 380,094,784.49, 570,357,856.22 and 205,215,489.65

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Solution

The fourth proportional to 380,094,784.49, 570,357,856.22 and 205,215,489.65 is: 307,939,681.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,094,784.49 : 570,357,856.22 = 205,215,489.65 : x
  2. Step 2: Convert to fraction form
    380,094,784.49/570,357,856.22 = 205,215,489.65/x
  3. Step 3: Cross multiply
    380,094,784.49x = 570,357,856.22 × 205,215,489.65
  4. Step 4: Simplify right side
    380,094,784.49x = 117,046,266,736,033,744
  5. Step 5: Solve for x
    x = 117,046,266,736,033,744/380,094,784.49
  6. Step 6: Final answer
    x = 307,939,681.14

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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.