Home / 130,849,209.21-180,571,937.15-71,310,519.42

Finding the Fourth Proportional to 130,849,209.21, 180,571,937.15 and 71,310,519.42

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Solution

The fourth proportional to 130,849,209.21, 180,571,937.15 and 71,310,519.42 is: 98,408,532.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,849,209.21 : 180,571,937.15 = 71,310,519.42 : x
  2. Step 2: Convert to fraction form
    130,849,209.21/180,571,937.15 = 71,310,519.42/x
  3. Step 3: Cross multiply
    130,849,209.21x = 180,571,937.15 × 71,310,519.42
  4. Step 4: Simplify right side
    130,849,209.21x = 12,876,678,630,485,542
  5. Step 5: Solve for x
    x = 12,876,678,630,485,542/130,849,209.21
  6. Step 6: Final answer
    x = 98,408,532.30

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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.