Home / 311,748,832.48-430,214,225.52-172,529,194.72

Finding the Fourth Proportional to 311,748,832.48, 430,214,225.52 and 172,529,194.72

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Solution

The fourth proportional to 311,748,832.48, 430,214,225.52 and 172,529,194.72 is: 238,090,751.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,748,832.48 : 430,214,225.52 = 172,529,194.72 : x
  2. Step 2: Convert to fraction form
    311,748,832.48/430,214,225.52 = 172,529,194.72/x
  3. Step 3: Cross multiply
    311,748,832.48x = 430,214,225.52 × 172,529,194.72
  4. Step 4: Simplify right side
    311,748,832.48x = 74,224,513,886,054,064
  5. Step 5: Solve for x
    x = 74,224,513,886,054,064/311,748,832.48
  6. Step 6: Final answer
    x = 238,090,751.76

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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.