Home / 278,446,098.48-417,865,417.88-130,900,392.96

Finding the Fourth Proportional to 278,446,098.48, 417,865,417.88 and 130,900,392.96

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Solution

The fourth proportional to 278,446,098.48, 417,865,417.88 and 130,900,392.96 is: 196,442,858.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,446,098.48 : 417,865,417.88 = 130,900,392.96 : x
  2. Step 2: Convert to fraction form
    278,446,098.48/417,865,417.88 = 130,900,392.96/x
  3. Step 3: Cross multiply
    278,446,098.48x = 417,865,417.88 × 130,900,392.96
  4. Step 4: Simplify right side
    278,446,098.48x = 54,698,747,404,232,104
  5. Step 5: Solve for x
    x = 54,698,747,404,232,104/278,446,098.48
  6. Step 6: Final answer
    x = 196,442,858.07

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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.