Home / 139,005,116.20-208,607,207.10-58,284,015.40

Finding the Fourth Proportional to 139,005,116.20, 208,607,207.10 and 58,284,015.40

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Solution

The fourth proportional to 139,005,116.20, 208,607,207.10 and 58,284,015.40 is: 87,467,756.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,005,116.20 : 208,607,207.10 = 58,284,015.40 : x
  2. Step 2: Convert to fraction form
    139,005,116.20/208,607,207.10 = 58,284,015.40/x
  3. Step 3: Cross multiply
    139,005,116.20x = 208,607,207.10 × 58,284,015.40
  4. Step 4: Simplify right side
    139,005,116.20x = 12,158,465,671,167,388
  5. Step 5: Solve for x
    x = 12,158,465,671,167,388/139,005,116.20
  6. Step 6: Final answer
    x = 87,467,756.61

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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.