Home / 292,478,012.89-438,712,590.69-71,151,436.82

Finding the Fourth Proportional to 292,478,012.89, 438,712,590.69 and 71,151,436.82

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Solution

The fourth proportional to 292,478,012.89, 438,712,590.69 and 71,151,436.82 is: 106,726,077.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,478,012.89 : 438,712,590.69 = 71,151,436.82 : x
  2. Step 2: Convert to fraction form
    292,478,012.89/438,712,590.69 = 71,151,436.82/x
  3. Step 3: Cross multiply
    292,478,012.89x = 438,712,590.69 × 71,151,436.82
  4. Step 4: Simplify right side
    292,478,012.89x = 31,215,031,179,714,840
  5. Step 5: Solve for x
    x = 31,215,031,179,714,840/292,478,012.89
  6. Step 6: Final answer
    x = 106,726,077.87

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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.