Home / 127,991,929.96-176,563,792.09-77,742,776.90

Finding the Fourth Proportional to 127,991,929.96, 176,563,792.09 and 77,742,776.90

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Solution

The fourth proportional to 127,991,929.96, 176,563,792.09 and 77,742,776.90 is: 107,245,507.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,991,929.96 : 176,563,792.09 = 77,742,776.90 : x
  2. Step 2: Convert to fraction form
    127,991,929.96/176,563,792.09 = 77,742,776.90/x
  3. Step 3: Cross multiply
    127,991,929.96x = 176,563,792.09 × 77,742,776.90
  4. Step 4: Simplify right side
    127,991,929.96x = 13,726,559,497,070,856
  5. Step 5: Solve for x
    x = 13,726,559,497,070,856/127,991,929.96
  6. Step 6: Final answer
    x = 107,245,507.60

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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.