Home / 78,918,239.52-118,374,690.96-27,798,922.32

Finding the Fourth Proportional to 78,918,239.52, 118,374,690.96 and 27,798,922.32

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Solution

The fourth proportional to 78,918,239.52, 118,374,690.96 and 27,798,922.32 is: 41,697,443.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,918,239.52 : 118,374,690.96 = 27,798,922.32 : x
  2. Step 2: Convert to fraction form
    78,918,239.52/118,374,690.96 = 27,798,922.32/x
  3. Step 3: Cross multiply
    78,918,239.52x = 118,374,690.96 × 27,798,922.32
  4. Step 4: Simplify right side
    78,918,239.52x = 3,290,688,838,651,046
  5. Step 5: Solve for x
    x = 3,290,688,838,651,046/78,918,239.52
  6. Step 6: Final answer
    x = 41,697,443.57

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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.