Home / 40,706,970.21-61,010,430.32-18,817,740.61

Finding the Fourth Proportional to 40,706,970.21, 61,010,430.32 and 18,817,740.61

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Solution

The fourth proportional to 40,706,970.21, 61,010,430.32 and 18,817,740.61 is: 28,203,485.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,706,970.21 : 61,010,430.32 = 18,817,740.61 : x
  2. Step 2: Convert to fraction form
    40,706,970.21/61,010,430.32 = 18,817,740.61/x
  3. Step 3: Cross multiply
    40,706,970.21x = 61,010,430.32 × 18,817,740.61
  4. Step 4: Simplify right side
    40,706,970.21x = 1,148,078,451,867,098.50
  5. Step 5: Solve for x
    x = 1,148,078,451,867,098.50/40,706,970.21
  6. Step 6: Final answer
    x = 28,203,485.69

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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.