Home / 72,681,199.96-108,960,518.15-31,710,588.49

Finding the Fourth Proportional to 72,681,199.96, 108,960,518.15 and 31,710,588.49

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Solution

The fourth proportional to 72,681,199.96, 108,960,518.15 and 31,710,588.49 is: 47,539,145.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,681,199.96 : 108,960,518.15 = 31,710,588.49 : x
  2. Step 2: Convert to fraction form
    72,681,199.96/108,960,518.15 = 31,710,588.49/x
  3. Step 3: Cross multiply
    72,681,199.96x = 108,960,518.15 × 31,710,588.49
  4. Step 4: Simplify right side
    72,681,199.96x = 3,455,202,152,553,273
  5. Step 5: Solve for x
    x = 3,455,202,152,553,273/72,681,199.96
  6. Step 6: Final answer
    x = 47,539,145.67

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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.