Home / 15,333,913.52-21,159,166.40-8,458,395.60

Finding the Fourth Proportional to 15,333,913.52, 21,159,166.40 and 8,458,395.60

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Solution

The fourth proportional to 15,333,913.52, 21,159,166.40 and 8,458,395.60 is: 11,671,684.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,333,913.52 : 21,159,166.40 = 8,458,395.60 : x
  2. Step 2: Convert to fraction form
    15,333,913.52/21,159,166.40 = 8,458,395.60/x
  3. Step 3: Cross multiply
    15,333,913.52x = 21,159,166.40 × 8,458,395.60
  4. Step 4: Simplify right side
    15,333,913.52x = 178,972,599,977,427.81
  5. Step 5: Solve for x
    x = 178,972,599,977,427.81/15,333,913.52
  6. Step 6: Final answer
    x = 11,671,684.45

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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.