Home / 139,882,762.20-209,824,143.30-99,068,093.40

Finding the Fourth Proportional to 139,882,762.20, 209,824,143.30 and 99,068,093.40

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Solution

The fourth proportional to 139,882,762.20, 209,824,143.30 and 99,068,093.40 is: 148,602,140.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,882,762.20 : 209,824,143.30 = 99,068,093.40 : x
  2. Step 2: Convert to fraction form
    139,882,762.20/209,824,143.30 = 99,068,093.40/x
  3. Step 3: Cross multiply
    139,882,762.20x = 209,824,143.30 × 99,068,093.40
  4. Step 4: Simplify right side
    139,882,762.20x = 20,786,877,826,019,388
  5. Step 5: Solve for x
    x = 20,786,877,826,019,388/139,882,762.20
  6. Step 6: Final answer
    x = 148,602,140.10

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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.