Home / 115,134,217.40-158,884,961.46-65,574,587.72

Finding the Fourth Proportional to 115,134,217.40, 158,884,961.46 and 65,574,587.72

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Solution

The fourth proportional to 115,134,217.40, 158,884,961.46 and 65,574,587.72 is: 90,492,783.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,134,217.40 : 158,884,961.46 = 65,574,587.72 : x
  2. Step 2: Convert to fraction form
    115,134,217.40/158,884,961.46 = 65,574,587.72/x
  3. Step 3: Cross multiply
    115,134,217.40x = 158,884,961.46 × 65,574,587.72
  4. Step 4: Simplify right side
    115,134,217.40x = 10,418,815,842,647,590
  5. Step 5: Solve for x
    x = 10,418,815,842,647,590/115,134,217.40
  6. Step 6: Final answer
    x = 90,492,783.80

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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.