Home / 152,053,511.17-209,838,272.01-85,972,590.67

Finding the Fourth Proportional to 152,053,511.17, 209,838,272.01 and 85,972,590.67

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Solution

The fourth proportional to 152,053,511.17, 209,838,272.01 and 85,972,590.67 is: 118,644,677.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,053,511.17 : 209,838,272.01 = 85,972,590.67 : x
  2. Step 2: Convert to fraction form
    152,053,511.17/209,838,272.01 = 85,972,590.67/x
  3. Step 3: Cross multiply
    152,053,511.17x = 209,838,272.01 × 85,972,590.67
  4. Step 4: Simplify right side
    152,053,511.17x = 18,040,339,866,415,848
  5. Step 5: Solve for x
    x = 18,040,339,866,415,848/152,053,511.17
  6. Step 6: Final answer
    x = 118,644,677.97

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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.