Home / 72,617,890.85-100,209,771.90-39,577,431.14

Finding the Fourth Proportional to 72,617,890.85, 100,209,771.90 and 39,577,431.14

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Solution

The fourth proportional to 72,617,890.85, 100,209,771.90 and 39,577,431.14 is: 54,615,264.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,617,890.85 : 100,209,771.90 = 39,577,431.14 : x
  2. Step 2: Convert to fraction form
    72,617,890.85/100,209,771.90 = 39,577,431.14/x
  3. Step 3: Cross multiply
    72,617,890.85x = 100,209,771.90 × 39,577,431.14
  4. Step 4: Simplify right side
    72,617,890.85x = 3,966,045,346,927,357.50
  5. Step 5: Solve for x
    x = 3,966,045,346,927,357.50/72,617,890.85
  6. Step 6: Final answer
    x = 54,615,264.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.