Home / 205,090,382.08-307,480,848.32-66,833,430.72

Finding the Fourth Proportional to 205,090,382.08, 307,480,848.32 and 66,833,430.72

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Solution

The fourth proportional to 205,090,382.08, 307,480,848.32 and 66,833,430.72 is: 100,199,725.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,090,382.08 : 307,480,848.32 = 66,833,430.72 : x
  2. Step 2: Convert to fraction form
    205,090,382.08/307,480,848.32 = 66,833,430.72/x
  3. Step 3: Cross multiply
    205,090,382.08x = 307,480,848.32 × 66,833,430.72
  4. Step 4: Simplify right side
    205,090,382.08x = 20,549,999,973,921,548
  5. Step 5: Solve for x
    x = 20,549,999,973,921,548/205,090,382.08
  6. Step 6: Final answer
    x = 100,199,725.44

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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.