Home / 28,587,424.60-42,876,989.70-8,390,560.60

Finding the Fourth Proportional to 28,587,424.60, 42,876,989.70 and 8,390,560.60

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Solution

The fourth proportional to 28,587,424.60, 42,876,989.70 and 8,390,560.60 is: 12,584,623.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,587,424.60 : 42,876,989.70 = 8,390,560.60 : x
  2. Step 2: Convert to fraction form
    28,587,424.60/42,876,989.70 = 8,390,560.60/x
  3. Step 3: Cross multiply
    28,587,424.60x = 42,876,989.70 × 8,390,560.60
  4. Step 4: Simplify right side
    28,587,424.60x = 359,761,980,423,425.81
  5. Step 5: Solve for x
    x = 359,761,980,423,425.81/28,587,424.60
  6. Step 6: Final answer
    x = 12,584,623.67

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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.