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Finding the Fourth Proportional to 586,809,630.40, 880,214,445.60 and 280,699,614.40

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Solution

The fourth proportional to 586,809,630.40, 880,214,445.60 and 280,699,614.40 is: 421,049,421.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,809,630.40 : 880,214,445.60 = 280,699,614.40 : x
  2. Step 2: Convert to fraction form
    586,809,630.40/880,214,445.60 = 280,699,614.40/x
  3. Step 3: Cross multiply
    586,809,630.40x = 880,214,445.60 × 280,699,614.40
  4. Step 4: Simplify right side
    586,809,630.40x = 247,075,855,469,229,760
  5. Step 5: Solve for x
    x = 247,075,855,469,229,760/586,809,630.40
  6. Step 6: Final answer
    x = 421,049,421.60

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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.