Home / 266,118,701.20-399,178,051.80-129,891,475.60

Finding the Fourth Proportional to 266,118,701.20, 399,178,051.80 and 129,891,475.60

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Solution

The fourth proportional to 266,118,701.20, 399,178,051.80 and 129,891,475.60 is: 194,837,213.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,118,701.20 : 399,178,051.80 = 129,891,475.60 : x
  2. Step 2: Convert to fraction form
    266,118,701.20/399,178,051.80 = 129,891,475.60/x
  3. Step 3: Cross multiply
    266,118,701.20x = 399,178,051.80 × 129,891,475.60
  4. Step 4: Simplify right side
    266,118,701.20x = 51,849,826,175,435,232
  5. Step 5: Solve for x
    x = 51,849,826,175,435,232/266,118,701.20
  6. Step 6: Final answer
    x = 194,837,213.40

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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.