Home / 672,146,908.60-1,009,039,175.70-426,503,068.60

Finding the Fourth Proportional to 672,146,908.60, 1,009,039,175.70 and 426,503,068.60

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Solution

The fourth proportional to 672,146,908.60, 1,009,039,175.70 and 426,503,068.60 is: 640,274,171.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,146,908.60 : 1,009,039,175.70 = 426,503,068.60 : x
  2. Step 2: Convert to fraction form
    672,146,908.60/1,009,039,175.70 = 426,503,068.60/x
  3. Step 3: Cross multiply
    672,146,908.60x = 1,009,039,175.70 × 426,503,068.60
  4. Step 4: Simplify right side
    672,146,908.60x = 430,358,304,773,664,576
  5. Step 5: Solve for x
    x = 430,358,304,773,664,576/672,146,908.60
  6. Step 6: Final answer
    x = 640,274,171.12

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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.