Home / 66,308,813.70-99,476,672.55-20,860,037.70

Finding the Fourth Proportional to 66,308,813.70, 99,476,672.55 and 20,860,037.70

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Solution

The fourth proportional to 66,308,813.70, 99,476,672.55 and 20,860,037.70 is: 31,294,288.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,308,813.70 : 99,476,672.55 = 20,860,037.70 : x
  2. Step 2: Convert to fraction form
    66,308,813.70/99,476,672.55 = 20,860,037.70/x
  3. Step 3: Cross multiply
    66,308,813.70x = 99,476,672.55 × 20,860,037.70
  4. Step 4: Simplify right side
    66,308,813.70x = 2,075,087,139,663,555
  5. Step 5: Solve for x
    x = 2,075,087,139,663,555/66,308,813.70
  6. Step 6: Final answer
    x = 31,294,288.40

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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.