Home / 145,079,999.60-217,619,999.40-99,163,497.20

Finding the Fourth Proportional to 145,079,999.60, 217,619,999.40 and 99,163,497.20

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Solution

The fourth proportional to 145,079,999.60, 217,619,999.40 and 99,163,497.20 is: 148,745,245.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,079,999.60 : 217,619,999.40 = 99,163,497.20 : x
  2. Step 2: Convert to fraction form
    145,079,999.60/217,619,999.40 = 99,163,497.20/x
  3. Step 3: Cross multiply
    145,079,999.60x = 217,619,999.40 × 99,163,497.20
  4. Step 4: Simplify right side
    145,079,999.60x = 21,579,960,201,165,904
  5. Step 5: Solve for x
    x = 21,579,960,201,165,904/145,079,999.60
  6. Step 6: Final answer
    x = 148,745,245.80

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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.