Home / 91,762,878.40-137,644,317.60-55,483,172.80

Finding the Fourth Proportional to 91,762,878.40, 137,644,317.60 and 55,483,172.80

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Solution

The fourth proportional to 91,762,878.40, 137,644,317.60 and 55,483,172.80 is: 83,224,759.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,762,878.40 : 137,644,317.60 = 55,483,172.80 : x
  2. Step 2: Convert to fraction form
    91,762,878.40/137,644,317.60 = 55,483,172.80/x
  3. Step 3: Cross multiply
    91,762,878.40x = 137,644,317.60 × 55,483,172.80
  4. Step 4: Simplify right side
    91,762,878.40x = 7,636,943,458,338,881
  5. Step 5: Solve for x
    x = 7,636,943,458,338,881/91,762,878.40
  6. Step 6: Final answer
    x = 83,224,759.20

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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.