Home / 66,585,814-99,878,721.24-18,716,758

Finding the Fourth Proportional to 66,585,814, 99,878,721.24 and 18,716,758

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Solution

The fourth proportional to 66,585,814, 99,878,721.24 and 18,716,758 is: 28,075,137.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,585,814 : 99,878,721.24 = 18,716,758 : x
  2. Step 2: Convert to fraction form
    66,585,814/99,878,721.24 = 18,716,758/x
  3. Step 3: Cross multiply
    66,585,814x = 99,878,721.24 × 18,716,758
  4. Step 4: Simplify right side
    66,585,814x = 1,869,405,854,798,539.75
  5. Step 5: Solve for x
    x = 1,869,405,854,798,539.75/66,585,814
  6. Step 6: Final answer
    x = 28,075,137.07

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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.