Home / 129,090,559.86-178,139,775.99-70,351,960.77

Finding the Fourth Proportional to 129,090,559.86, 178,139,775.99 and 70,351,960.77

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Solution

The fourth proportional to 129,090,559.86, 178,139,775.99 and 70,351,960.77 is: 97,082,873.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,090,559.86 : 178,139,775.99 = 70,351,960.77 : x
  2. Step 2: Convert to fraction form
    129,090,559.86/178,139,775.99 = 70,351,960.77/x
  3. Step 3: Cross multiply
    129,090,559.86x = 178,139,775.99 × 70,351,960.77
  4. Step 4: Simplify right side
    129,090,559.86x = 12,532,482,532,025,068
  5. Step 5: Solve for x
    x = 12,532,482,532,025,068/129,090,559.86
  6. Step 6: Final answer
    x = 97,082,873.80

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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.