Home / 74,916,056.72-112,374,085.10-21,063,368.72

Finding the Fourth Proportional to 74,916,056.72, 112,374,085.10 and 21,063,368.72

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Solution

The fourth proportional to 74,916,056.72, 112,374,085.10 and 21,063,368.72 is: 31,595,053.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,916,056.72 : 112,374,085.10 = 21,063,368.72 : x
  2. Step 2: Convert to fraction form
    74,916,056.72/112,374,085.10 = 21,063,368.72/x
  3. Step 3: Cross multiply
    74,916,056.72x = 112,374,085.10 × 21,063,368.72
  4. Step 4: Simplify right side
    74,916,056.72x = 2,366,976,789,033,958
  5. Step 5: Solve for x
    x = 2,366,976,789,033,958/74,916,056.72
  6. Step 6: Final answer
    x = 31,595,053.09

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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.