Home / 74,984,687.10-112,477,030.65-21,131,999.10

Finding the Fourth Proportional to 74,984,687.10, 112,477,030.65 and 21,131,999.10

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Solution

The fourth proportional to 74,984,687.10, 112,477,030.65 and 21,131,999.10 is: 31,697,998.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,984,687.10 : 112,477,030.65 = 21,131,999.10 : x
  2. Step 2: Convert to fraction form
    74,984,687.10/112,477,030.65 = 21,131,999.10/x
  3. Step 3: Cross multiply
    74,984,687.10x = 112,477,030.65 × 21,131,999.10
  4. Step 4: Simplify right side
    74,984,687.10x = 2,376,864,510,466,472.50
  5. Step 5: Solve for x
    x = 2,376,864,510,466,472.50/74,984,687.10
  6. Step 6: Final answer
    x = 31,697,998.65

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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.