Home / 424,493,071.20-636,668,378.64-117,816,340.32

Finding the Fourth Proportional to 424,493,071.20, 636,668,378.64 and 117,816,340.32

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Solution

The fourth proportional to 424,493,071.20, 636,668,378.64 and 117,816,340.32 is: 176,704,741.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,493,071.20 : 636,668,378.64 = 117,816,340.32 : x
  2. Step 2: Convert to fraction form
    424,493,071.20/636,668,378.64 = 117,816,340.32/x
  3. Step 3: Cross multiply
    424,493,071.20x = 636,668,378.64 × 117,816,340.32
  4. Step 4: Simplify right side
    424,493,071.20x = 75,009,938,368,832,848
  5. Step 5: Solve for x
    x = 75,009,938,368,832,848/424,493,071.20
  6. Step 6: Final answer
    x = 176,704,741.39

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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.