Home / 429,126,706.14-643,786,012.01-156,497,473.14

Finding the Fourth Proportional to 429,126,706.14, 643,786,012.01 and 156,497,473.14

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Solution

The fourth proportional to 429,126,706.14, 643,786,012.01 and 156,497,473.14 is: 234,781,202.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,126,706.14 : 643,786,012.01 = 156,497,473.14 : x
  2. Step 2: Convert to fraction form
    429,126,706.14/643,786,012.01 = 156,497,473.14/x
  3. Step 3: Cross multiply
    429,126,706.14x = 643,786,012.01 × 156,497,473.14
  4. Step 4: Simplify right side
    429,126,706.14x = 100,750,884,122,442,688
  5. Step 5: Solve for x
    x = 100,750,884,122,442,688/429,126,706.14
  6. Step 6: Final answer
    x = 234,781,202.57

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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.