Home / 130,003,987.60-195,005,981.40-53,382,005.20

Finding the Fourth Proportional to 130,003,987.60, 195,005,981.40 and 53,382,005.20

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Solution

The fourth proportional to 130,003,987.60, 195,005,981.40 and 53,382,005.20 is: 80,073,007.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,003,987.60 : 195,005,981.40 = 53,382,005.20 : x
  2. Step 2: Convert to fraction form
    130,003,987.60/195,005,981.40 = 53,382,005.20/x
  3. Step 3: Cross multiply
    130,003,987.60x = 195,005,981.40 × 53,382,005.20
  4. Step 4: Simplify right side
    130,003,987.60x = 10,409,810,313,125,904
  5. Step 5: Solve for x
    x = 10,409,810,313,125,904/130,003,987.60
  6. Step 6: Final answer
    x = 80,073,007.80

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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.