Home / 100,243,459.86-138,327,523.65-55,590,712.98

Finding the Fourth Proportional to 100,243,459.86, 138,327,523.65 and 55,590,712.98

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Solution

The fourth proportional to 100,243,459.86, 138,327,523.65 and 55,590,712.98 is: 76,710,497.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,243,459.86 : 138,327,523.65 = 55,590,712.98 : x
  2. Step 2: Convert to fraction form
    100,243,459.86/138,327,523.65 = 55,590,712.98/x
  3. Step 3: Cross multiply
    100,243,459.86x = 138,327,523.65 × 55,590,712.98
  4. Step 4: Simplify right side
    100,243,459.86x = 7,689,725,664,461,312
  5. Step 5: Solve for x
    x = 7,689,725,664,461,312/100,243,459.86
  6. Step 6: Final answer
    x = 76,710,497.38

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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.