Home / 85,964,145.60-128,946,218.40-29,230,449.60

Finding the Fourth Proportional to 85,964,145.60, 128,946,218.40 and 29,230,449.60

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Solution

The fourth proportional to 85,964,145.60, 128,946,218.40 and 29,230,449.60 is: 43,845,674.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,964,145.60 : 128,946,218.40 = 29,230,449.60 : x
  2. Step 2: Convert to fraction form
    85,964,145.60/128,946,218.40 = 29,230,449.60/x
  3. Step 3: Cross multiply
    85,964,145.60x = 128,946,218.40 × 29,230,449.60
  4. Step 4: Simplify right side
    85,964,145.60x = 3,769,155,938,051,793
  5. Step 5: Solve for x
    x = 3,769,155,938,051,793/85,964,145.60
  6. Step 6: Final answer
    x = 43,845,674.40

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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.