Home / 291,380,979.92-437,118,903.48-136,090,078.16

Finding the Fourth Proportional to 291,380,979.92, 437,118,903.48 and 136,090,078.16

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Solution

The fourth proportional to 291,380,979.92, 437,118,903.48 and 136,090,078.16 is: 204,157,271.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,380,979.92 : 437,118,903.48 = 136,090,078.16 : x
  2. Step 2: Convert to fraction form
    291,380,979.92/437,118,903.48 = 136,090,078.16/x
  3. Step 3: Cross multiply
    291,380,979.92x = 437,118,903.48 × 136,090,078.16
  4. Step 4: Simplify right side
    291,380,979.92x = 59,487,545,739,806,696
  5. Step 5: Solve for x
    x = 59,487,545,739,806,696/291,380,979.92
  6. Step 6: Final answer
    x = 204,157,271.20

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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.