Home / 127,991,930.35-176,563,792.61-77,742,777.28

Finding the Fourth Proportional to 127,991,930.35, 176,563,792.61 and 77,742,777.28

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Solution

The fourth proportional to 127,991,930.35, 176,563,792.61 and 77,742,777.28 is: 107,245,508.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,991,930.35 : 176,563,792.61 = 77,742,777.28 : x
  2. Step 2: Convert to fraction form
    127,991,930.35/176,563,792.61 = 77,742,777.28/x
  3. Step 3: Cross multiply
    127,991,930.35x = 176,563,792.61 × 77,742,777.28
  4. Step 4: Simplify right side
    127,991,930.35x = 13,726,559,603,319,808
  5. Step 5: Solve for x
    x = 13,726,559,603,319,808/127,991,930.35
  6. Step 6: Final answer
    x = 107,245,508.11

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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.