Home / 72,929,892.96-100,674,241.44-45,441,402.72

Finding the Fourth Proportional to 72,929,892.96, 100,674,241.44 and 45,441,402.72

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Solution

The fourth proportional to 72,929,892.96, 100,674,241.44 and 45,441,402.72 is: 62,728,444.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,929,892.96 : 100,674,241.44 = 45,441,402.72 : x
  2. Step 2: Convert to fraction form
    72,929,892.96/100,674,241.44 = 45,441,402.72/x
  3. Step 3: Cross multiply
    72,929,892.96x = 100,674,241.44 × 45,441,402.72
  4. Step 4: Simplify right side
    72,929,892.96x = 4,574,778,748,805,552
  5. Step 5: Solve for x
    x = 4,574,778,748,805,552/72,929,892.96
  6. Step 6: Final answer
    x = 62,728,444.58

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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.