Home / 115,919,051.60-173,878,577.40-87,008,661.20

Finding the Fourth Proportional to 115,919,051.60, 173,878,577.40 and 87,008,661.20

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Solution

The fourth proportional to 115,919,051.60, 173,878,577.40 and 87,008,661.20 is: 130,512,991.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,919,051.60 : 173,878,577.40 = 87,008,661.20 : x
  2. Step 2: Convert to fraction form
    115,919,051.60/173,878,577.40 = 87,008,661.20/x
  3. Step 3: Cross multiply
    115,919,051.60x = 173,878,577.40 × 87,008,661.20
  4. Step 4: Simplify right side
    115,919,051.60x = 15,128,942,230,934,578
  5. Step 5: Solve for x
    x = 15,128,942,230,934,578/115,919,051.60
  6. Step 6: Final answer
    x = 130,512,991.80

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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.