Home / 155,435,494.80-233,302,541.40-78,845,005.20

Finding the Fourth Proportional to 155,435,494.80, 233,302,541.40 and 78,845,005.20

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Solution

The fourth proportional to 155,435,494.80, 233,302,541.40 and 78,845,005.20 is: 118,343,240.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,435,494.80 : 233,302,541.40 = 78,845,005.20 : x
  2. Step 2: Convert to fraction form
    155,435,494.80/233,302,541.40 = 78,845,005.20/x
  3. Step 3: Cross multiply
    155,435,494.80x = 233,302,541.40 × 78,845,005.20
  4. Step 4: Simplify right side
    155,435,494.80x = 18,394,740,089,856,216
  5. Step 5: Solve for x
    x = 18,394,740,089,856,216/155,435,494.80
  6. Step 6: Final answer
    x = 118,343,240.16

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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.