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Finding the Fourth Proportional to 139,566,492.17, 209,372,478.90 and 41,208,141.27

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Solution

The fourth proportional to 139,566,492.17, 209,372,478.90 and 41,208,141.27 is: 61,818,926.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,566,492.17 : 209,372,478.90 = 41,208,141.27 : x
  2. Step 2: Convert to fraction form
    139,566,492.17/209,372,478.90 = 41,208,141.27/x
  3. Step 3: Cross multiply
    139,566,492.17x = 209,372,478.90 × 41,208,141.27
  4. Step 4: Simplify right side
    139,566,492.17x = 8,627,850,688,355,255
  5. Step 5: Solve for x
    x = 8,627,850,688,355,255/139,566,492.17
  6. Step 6: Final answer
    x = 61,818,926.27

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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.