Home / 430,094,905.49-645,146,091.84-138,962,059.35

Finding the Fourth Proportional to 430,094,905.49, 645,146,091.84 and 138,962,059.35

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Solution

The fourth proportional to 430,094,905.49, 645,146,091.84 and 138,962,059.35 is: 208,444,295.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,094,905.49 : 645,146,091.84 = 138,962,059.35 : x
  2. Step 2: Convert to fraction form
    430,094,905.49/645,146,091.84 = 138,962,059.35/x
  3. Step 3: Cross multiply
    430,094,905.49x = 645,146,091.84 × 138,962,059.35
  4. Step 4: Simplify right side
    430,094,905.49x = 89,650,829,503,690,624
  5. Step 5: Solve for x
    x = 89,650,829,503,690,624/430,094,905.49
  6. Step 6: Final answer
    x = 208,444,295.34

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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.