Home / 428,215,566.28-590,966,720.90-242,578,107.40

Finding the Fourth Proportional to 428,215,566.28, 590,966,720.90 and 242,578,107.40

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Solution

The fourth proportional to 428,215,566.28, 590,966,720.90 and 242,578,107.40 is: 334,774,351.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,215,566.28 : 590,966,720.90 = 242,578,107.40 : x
  2. Step 2: Convert to fraction form
    428,215,566.28/590,966,720.90 = 242,578,107.40/x
  3. Step 3: Cross multiply
    428,215,566.28x = 590,966,720.90 × 242,578,107.40
  4. Step 4: Simplify right side
    428,215,566.28x = 143,355,588,692,306,016
  5. Step 5: Solve for x
    x = 143,355,588,692,306,016/428,215,566.28
  6. Step 6: Final answer
    x = 334,774,351.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.