Home / 5,228,427,332.81-7,842,636,207.41-1,638,880,260.57

Finding the Fourth Proportional to 5,228,427,332.81, 7,842,636,207.41 and 1,638,880,260.57

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Solution

The fourth proportional to 5,228,427,332.81, 7,842,636,207.41 and 1,638,880,260.57 is: 2,458,318,888.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,228,427,332.81 : 7,842,636,207.41 = 1,638,880,260.57 : x
  2. Step 2: Convert to fraction form
    5,228,427,332.81/7,842,636,207.41 = 1,638,880,260.57/x
  3. Step 3: Cross multiply
    5,228,427,332.81x = 7,842,636,207.41 × 1,638,880,260.57
  4. Step 4: Simplify right side
    5,228,427,332.81x = 12,853,141,671,147,622,400
  5. Step 5: Solve for x
    x = 12,853,141,671,147,622,400/5,228,427,332.81
  6. Step 6: Final answer
    x = 2,458,318,888.83

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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.