Home / 66,429,859.70-99,686,779.95-39,136,099.70

Finding the Fourth Proportional to 66,429,859.70, 99,686,779.95 and 39,136,099.70

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Solution

The fourth proportional to 66,429,859.70, 99,686,779.95 and 39,136,099.70 is: 58,728,887.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,429,859.70 : 99,686,779.95 = 39,136,099.70 : x
  2. Step 2: Convert to fraction form
    66,429,859.70/99,686,779.95 = 39,136,099.70/x
  3. Step 3: Cross multiply
    66,429,859.70x = 99,686,779.95 × 39,136,099.70
  4. Step 4: Simplify right side
    66,429,859.70x = 3,901,351,758,895,161.50
  5. Step 5: Solve for x
    x = 3,901,351,758,895,161.50/66,429,859.70
  6. Step 6: Final answer
    x = 58,728,887.53

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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.