Home / 78,742,906.80-118,114,360.20-46,361,569.20

Finding the Fourth Proportional to 78,742,906.80, 118,114,360.20 and 46,361,569.20

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Solution

The fourth proportional to 78,742,906.80, 118,114,360.20 and 46,361,569.20 is: 69,542,353.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,742,906.80 : 118,114,360.20 = 46,361,569.20 : x
  2. Step 2: Convert to fraction form
    78,742,906.80/118,114,360.20 = 46,361,569.20/x
  3. Step 3: Cross multiply
    78,742,906.80x = 118,114,360.20 × 46,361,569.20
  4. Step 4: Simplify right side
    78,742,906.80x = 5,475,967,083,926,026
  5. Step 5: Solve for x
    x = 5,475,967,083,926,026/78,742,906.80
  6. Step 6: Final answer
    x = 69,542,353.80

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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.