Home / 38,676,577.50-53,374,686.75-21,273,379.20

Finding the Fourth Proportional to 38,676,577.50, 53,374,686.75 and 21,273,379.20

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Solution

The fourth proportional to 38,676,577.50, 53,374,686.75 and 21,273,379.20 is: 29,357,818.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,676,577.50 : 53,374,686.75 = 21,273,379.20 : x
  2. Step 2: Convert to fraction form
    38,676,577.50/53,374,686.75 = 21,273,379.20/x
  3. Step 3: Cross multiply
    38,676,577.50x = 53,374,686.75 × 21,273,379.20
  4. Step 4: Simplify right side
    38,676,577.50x = 1,135,459,950,913,965.50
  5. Step 5: Solve for x
    x = 1,135,459,950,913,965.50/38,676,577.50
  6. Step 6: Final answer
    x = 29,357,818.72

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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.