Home / 261,698,417.42-361,143,872.90-142,621,037.84

Finding the Fourth Proportional to 261,698,417.42, 361,143,872.90 and 142,621,037.84

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Solution

The fourth proportional to 261,698,417.42, 361,143,872.90 and 142,621,037.84 is: 196,817,063.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,698,417.42 : 361,143,872.90 = 142,621,037.84 : x
  2. Step 2: Convert to fraction form
    261,698,417.42/361,143,872.90 = 142,621,037.84/x
  3. Step 3: Cross multiply
    261,698,417.42x = 361,143,872.90 × 142,621,037.84
  4. Step 4: Simplify right side
    261,698,417.42x = 51,506,713,962,555,048
  5. Step 5: Solve for x
    x = 51,506,713,962,555,048/261,698,417.42
  6. Step 6: Final answer
    x = 196,817,063.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.