Home / 138,425,411.60-207,638,117.40-131,706,947.60

Finding the Fourth Proportional to 138,425,411.60, 207,638,117.40 and 131,706,947.60

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Solution

The fourth proportional to 138,425,411.60, 207,638,117.40 and 131,706,947.60 is: 197,560,421.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,425,411.60 : 207,638,117.40 = 131,706,947.60 : x
  2. Step 2: Convert to fraction form
    138,425,411.60/207,638,117.40 = 131,706,947.60/x
  3. Step 3: Cross multiply
    138,425,411.60x = 207,638,117.40 × 131,706,947.60
  4. Step 4: Simplify right side
    138,425,411.60x = 27,347,382,648,164,448
  5. Step 5: Solve for x
    x = 27,347,382,648,164,448/138,425,411.60
  6. Step 6: Final answer
    x = 197,560,421.40

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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.