Home / 129,090,550.10-178,139,762.53-70,351,951.01

Finding the Fourth Proportional to 129,090,550.10, 178,139,762.53 and 70,351,951.01

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Solution

The fourth proportional to 129,090,550.10, 178,139,762.53 and 70,351,951.01 is: 97,082,860.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,090,550.10 : 178,139,762.53 = 70,351,951.01 : x
  2. Step 2: Convert to fraction form
    129,090,550.10/178,139,762.53 = 70,351,951.01/x
  3. Step 3: Cross multiply
    129,090,550.10x = 178,139,762.53 × 70,351,951.01
  4. Step 4: Simplify right side
    129,090,550.10x = 12,532,479,845,377,014
  5. Step 5: Solve for x
    x = 12,532,479,845,377,014/129,090,550.10
  6. Step 6: Final answer
    x = 97,082,860.33

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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.