Home / 133,030,869.90-199,546,304.85-87,643,913.10

Finding the Fourth Proportional to 133,030,869.90, 199,546,304.85 and 87,643,913.10

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Solution

The fourth proportional to 133,030,869.90, 199,546,304.85 and 87,643,913.10 is: 131,465,869.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,030,869.90 : 199,546,304.85 = 87,643,913.10 : x
  2. Step 2: Convert to fraction form
    133,030,869.90/199,546,304.85 = 87,643,913.10/x
  3. Step 3: Cross multiply
    133,030,869.90x = 199,546,304.85 × 87,643,913.10
  4. Step 4: Simplify right side
    133,030,869.90x = 17,489,019,001,699,506
  5. Step 5: Solve for x
    x = 17,489,019,001,699,506/133,030,869.90
  6. Step 6: Final answer
    x = 131,465,869.65

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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.