Home / 99,421,028-149,136,856.42-31,269,034.16

Finding the Fourth Proportional to 99,421,028, 149,136,856.42 and 31,269,034.16

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Solution

The fourth proportional to 99,421,028, 149,136,856.42 and 31,269,034.16 is: 46,905,222.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,421,028 : 149,136,856.42 = 31,269,034.16 : x
  2. Step 2: Convert to fraction form
    99,421,028/149,136,856.42 = 31,269,034.16/x
  3. Step 3: Cross multiply
    99,421,028x = 149,136,856.42 × 31,269,034.16
  4. Step 4: Simplify right side
    99,421,028x = 4,663,365,457,911,995
  5. Step 5: Solve for x
    x = 4,663,365,457,911,995/99,421,028
  6. Step 6: Final answer
    x = 46,905,222.69

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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.