Home / 143,139,325.20-214,771,973.40-66,422,864.40

Finding the Fourth Proportional to 143,139,325.20, 214,771,973.40 and 66,422,864.40

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Solution

The fourth proportional to 143,139,325.20, 214,771,973.40 and 66,422,864.40 is: 99,663,524.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,139,325.20 : 214,771,973.40 = 66,422,864.40 : x
  2. Step 2: Convert to fraction form
    143,139,325.20/214,771,973.40 = 66,422,864.40/x
  3. Step 3: Cross multiply
    143,139,325.20x = 214,771,973.40 × 66,422,864.40
  4. Step 4: Simplify right side
    143,139,325.20x = 14,265,769,666,068,608
  5. Step 5: Solve for x
    x = 14,265,769,666,068,608/143,139,325.20
  6. Step 6: Final answer
    x = 99,663,524.65

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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.