Home / 120,975,018.40-181,462,527.60-108,503,869.60

Finding the Fourth Proportional to 120,975,018.40, 181,462,527.60 and 108,503,869.60

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Solution

The fourth proportional to 120,975,018.40, 181,462,527.60 and 108,503,869.60 is: 162,755,804.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,975,018.40 : 181,462,527.60 = 108,503,869.60 : x
  2. Step 2: Convert to fraction form
    120,975,018.40/181,462,527.60 = 108,503,869.60/x
  3. Step 3: Cross multiply
    120,975,018.40x = 181,462,527.60 × 108,503,869.60
  4. Step 4: Simplify right side
    120,975,018.40x = 19,689,386,431,996,800
  5. Step 5: Solve for x
    x = 19,689,386,431,996,800/120,975,018.40
  6. Step 6: Final answer
    x = 162,755,804.40

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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.