Home / 128,742,755.69-177,665,927.49-70,004,999.94

Finding the Fourth Proportional to 128,742,755.69, 177,665,927.49 and 70,004,999.94

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Solution

The fourth proportional to 128,742,755.69, 177,665,927.49 and 70,004,999.94 is: 96,607,402.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,742,755.69 : 177,665,927.49 = 70,004,999.94 : x
  2. Step 2: Convert to fraction form
    128,742,755.69/177,665,927.49 = 70,004,999.94/x
  3. Step 3: Cross multiply
    128,742,755.69x = 177,665,927.49 × 70,004,999.94
  4. Step 4: Simplify right side
    128,742,755.69x = 12,437,503,243,277,494
  5. Step 5: Solve for x
    x = 12,437,503,243,277,494/128,742,755.69
  6. Step 6: Final answer
    x = 96,607,402.70

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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.