Home / 42,883,214.90-64,318,601.55-12,587,918.90

Finding the Fourth Proportional to 42,883,214.90, 64,318,601.55 and 12,587,918.90

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Solution

The fourth proportional to 42,883,214.90, 64,318,601.55 and 12,587,918.90 is: 18,880,052.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,883,214.90 : 64,318,601.55 = 12,587,918.90 : x
  2. Step 2: Convert to fraction form
    42,883,214.90/64,318,601.55 = 12,587,918.90/x
  3. Step 3: Cross multiply
    42,883,214.90x = 64,318,601.55 × 12,587,918.90
  4. Step 4: Simplify right side
    42,883,214.90x = 809,637,340,072,814.25
  5. Step 5: Solve for x
    x = 809,637,340,072,814.25/42,883,214.90
  6. Step 6: Final answer
    x = 18,880,052.30

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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.