Home / 85,590,203.51-118,104,516.32-47,915,430.50

Finding the Fourth Proportional to 85,590,203.51, 118,104,516.32 and 47,915,430.50

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Solution

The fourth proportional to 85,590,203.51, 118,104,516.32 and 47,915,430.50 is: 66,117,715.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,590,203.51 : 118,104,516.32 = 47,915,430.50 : x
  2. Step 2: Convert to fraction form
    85,590,203.51/118,104,516.32 = 47,915,430.50/x
  3. Step 3: Cross multiply
    85,590,203.51x = 118,104,516.32 × 47,915,430.50
  4. Step 4: Simplify right side
    85,590,203.51x = 5,659,028,742,636,976
  5. Step 5: Solve for x
    x = 5,659,028,742,636,976/85,590,203.51
  6. Step 6: Final answer
    x = 66,117,715.71

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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.