Home / 191,852,390.70-287,715,600.45-70,668,096.30

Finding the Fourth Proportional to 191,852,390.70, 287,715,600.45 and 70,668,096.30

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Solution

The fourth proportional to 191,852,390.70, 287,715,600.45 and 70,668,096.30 is: 105,978,943.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,852,390.70 : 287,715,600.45 = 70,668,096.30 : x
  2. Step 2: Convert to fraction form
    191,852,390.70/287,715,600.45 = 70,668,096.30/x
  3. Step 3: Cross multiply
    191,852,390.70x = 287,715,600.45 × 70,668,096.30
  4. Step 4: Simplify right side
    191,852,390.70x = 20,332,313,759,612,920
  5. Step 5: Solve for x
    x = 20,332,313,759,612,920/191,852,390.70
  6. Step 6: Final answer
    x = 105,978,943.94

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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.