Home / 620,527,001.50-856,333,168.59-342,078,511.42

Finding the Fourth Proportional to 620,527,001.50, 856,333,168.59 and 342,078,511.42

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Solution

The fourth proportional to 620,527,001.50, 856,333,168.59 and 342,078,511.42 is: 472,071,601.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,527,001.50 : 856,333,168.59 = 342,078,511.42 : x
  2. Step 2: Convert to fraction form
    620,527,001.50/856,333,168.59 = 342,078,511.42/x
  3. Step 3: Cross multiply
    620,527,001.50x = 856,333,168.59 × 342,078,511.42
  4. Step 4: Simplify right side
    620,527,001.50x = 292,933,175,590,839,104
  5. Step 5: Solve for x
    x = 292,933,175,590,839,104/620,527,001.50
  6. Step 6: Final answer
    x = 472,071,601.85

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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.