Home / 28,142,320.78-42,213,036.48-8,972,948.26

Finding the Fourth Proportional to 28,142,320.78, 42,213,036.48 and 8,972,948.26

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Solution

The fourth proportional to 28,142,320.78, 42,213,036.48 and 8,972,948.26 is: 13,459,280.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,142,320.78 : 42,213,036.48 = 8,972,948.26 : x
  2. Step 2: Convert to fraction form
    28,142,320.78/42,213,036.48 = 8,972,948.26/x
  3. Step 3: Cross multiply
    28,142,320.78x = 42,213,036.48 × 8,972,948.26
  4. Step 4: Simplify right side
    28,142,320.78x = 378,775,392,232,532.50
  5. Step 5: Solve for x
    x = 378,775,392,232,532.50/28,142,320.78
  6. Step 6: Final answer
    x = 13,459,280.60

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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.