Home / 72,575,959.10-100,154,779.16-39,980,911.10

Finding the Fourth Proportional to 72,575,959.10, 100,154,779.16 and 39,980,911.10

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Solution

The fourth proportional to 72,575,959.10, 100,154,779.16 and 39,980,911.10 is: 55,173,632.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,575,959.10 : 100,154,779.16 = 39,980,911.10 : x
  2. Step 2: Convert to fraction form
    72,575,959.10/100,154,779.16 = 39,980,911.10/x
  3. Step 3: Cross multiply
    72,575,959.10x = 100,154,779.16 × 39,980,911.10
  4. Step 4: Simplify right side
    72,575,959.10x = 4,004,279,321,135,414
  5. Step 5: Solve for x
    x = 4,004,279,321,135,414/72,575,959.10
  6. Step 6: Final answer
    x = 55,173,632.85

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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.