Home / 72,604,865.40-108,907,298.10-64,668,679.80

Finding the Fourth Proportional to 72,604,865.40, 108,907,298.10 and 64,668,679.80

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Solution

The fourth proportional to 72,604,865.40, 108,907,298.10 and 64,668,679.80 is: 97,003,019.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,604,865.40 : 108,907,298.10 = 64,668,679.80 : x
  2. Step 2: Convert to fraction form
    72,604,865.40/108,907,298.10 = 64,668,679.80/x
  3. Step 3: Cross multiply
    72,604,865.40x = 108,907,298.10 × 64,668,679.80
  4. Step 4: Simplify right side
    72,604,865.40x = 7,042,891,188,712,048
  5. Step 5: Solve for x
    x = 7,042,891,188,712,048/72,604,865.40
  6. Step 6: Final answer
    x = 97,003,019.70

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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.