Home / 139,000,832.12-191,824,078.15-76,276,381.45

Finding the Fourth Proportional to 139,000,832.12, 191,824,078.15 and 76,276,381.45

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Solution

The fourth proportional to 139,000,832.12, 191,824,078.15 and 76,276,381.45 is: 105,263,014.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,000,832.12 : 191,824,078.15 = 76,276,381.45 : x
  2. Step 2: Convert to fraction form
    139,000,832.12/191,824,078.15 = 76,276,381.45/x
  3. Step 3: Cross multiply
    139,000,832.12x = 191,824,078.15 × 76,276,381.45
  4. Step 4: Simplify right side
    139,000,832.12x = 14,631,646,556,264,012
  5. Step 5: Solve for x
    x = 14,631,646,556,264,012/139,000,832.12
  6. Step 6: Final answer
    x = 105,263,014.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.