Home / 543,798,120.72-815,702,901.50-435,312,928.96

Finding the Fourth Proportional to 543,798,120.72, 815,702,901.50 and 435,312,928.96

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Solution

The fourth proportional to 543,798,120.72, 815,702,901.50 and 435,312,928.96 is: 652,973,972.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,798,120.72 : 815,702,901.50 = 435,312,928.96 : x
  2. Step 2: Convert to fraction form
    543,798,120.72/815,702,901.50 = 435,312,928.96/x
  3. Step 3: Cross multiply
    543,798,120.72x = 815,702,901.50 × 435,312,928.96
  4. Step 4: Simplify right side
    543,798,120.72x = 355,086,019,213,135,360
  5. Step 5: Solve for x
    x = 355,086,019,213,135,360/543,798,120.72
  6. Step 6: Final answer
    x = 652,973,972.66

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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.