Home / 130,575,736.10-180,194,509.87-71,837,141.12

Finding the Fourth Proportional to 130,575,736.10, 180,194,509.87 and 71,837,141.12

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Solution

The fourth proportional to 130,575,736.10, 180,194,509.87 and 71,837,141.12 is: 99,135,251.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,575,736.10 : 180,194,509.87 = 71,837,141.12 : x
  2. Step 2: Convert to fraction form
    130,575,736.10/180,194,509.87 = 71,837,141.12/x
  3. Step 3: Cross multiply
    130,575,736.10x = 180,194,509.87 × 71,837,141.12
  4. Step 4: Simplify right side
    130,575,736.10x = 12,944,658,434,175,588
  5. Step 5: Solve for x
    x = 12,944,658,434,175,588/130,575,736.10
  6. Step 6: Final answer
    x = 99,135,251.47

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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.