Home / 72,508,943.91-100,064,759.60-40,724,714.67

Finding the Fourth Proportional to 72,508,943.91, 100,064,759.60 and 40,724,714.67

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Solution

The fourth proportional to 72,508,943.91, 100,064,759.60 and 40,724,714.67 is: 56,201,463.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,508,943.91 : 100,064,759.60 = 40,724,714.67 : x
  2. Step 2: Convert to fraction form
    72,508,943.91/100,064,759.60 = 40,724,714.67/x
  3. Step 3: Cross multiply
    72,508,943.91x = 100,064,759.60 × 40,724,714.67
  4. Step 4: Simplify right side
    72,508,943.91x = 4,075,108,783,232,143.50
  5. Step 5: Solve for x
    x = 4,075,108,783,232,143.50/72,508,943.91
  6. Step 6: Final answer
    x = 56,201,463.76

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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.