Home / 660,520,051.65-990,780,077.48-200,457,482.85

Finding the Fourth Proportional to 660,520,051.65, 990,780,077.48 and 200,457,482.85

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Solution

The fourth proportional to 660,520,051.65, 990,780,077.48 and 200,457,482.85 is: 300,686,224.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,520,051.65 : 990,780,077.48 = 200,457,482.85 : x
  2. Step 2: Convert to fraction form
    660,520,051.65/990,780,077.48 = 200,457,482.85/x
  3. Step 3: Cross multiply
    660,520,051.65x = 990,780,077.48 × 200,457,482.85
  4. Step 4: Simplify right side
    660,520,051.65x = 198,609,280,388,566,496
  5. Step 5: Solve for x
    x = 198,609,280,388,566,496/660,520,051.65
  6. Step 6: Final answer
    x = 300,686,224.28

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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.