Home / 66,440,429.10-99,660,643.65-42,100,431.30

Finding the Fourth Proportional to 66,440,429.10, 99,660,643.65 and 42,100,431.30

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Solution

The fourth proportional to 66,440,429.10, 99,660,643.65 and 42,100,431.30 is: 63,150,646.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,440,429.10 : 99,660,643.65 = 42,100,431.30 : x
  2. Step 2: Convert to fraction form
    66,440,429.10/99,660,643.65 = 42,100,431.30/x
  3. Step 3: Cross multiply
    66,440,429.10x = 99,660,643.65 × 42,100,431.30
  4. Step 4: Simplify right side
    66,440,429.10x = 4,195,756,081,300,606
  5. Step 5: Solve for x
    x = 4,195,756,081,300,606/66,440,429.10
  6. Step 6: Final answer
    x = 63,150,646.95

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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.