Home / 78,918,210.90-118,374,648.21-27,798,893.82

Finding the Fourth Proportional to 78,918,210.90, 118,374,648.21 and 27,798,893.82

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Solution

The fourth proportional to 78,918,210.90, 118,374,648.21 and 27,798,893.82 is: 41,697,400.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,918,210.90 : 118,374,648.21 = 27,798,893.82 : x
  2. Step 2: Convert to fraction form
    78,918,210.90/118,374,648.21 = 27,798,893.82/x
  3. Step 3: Cross multiply
    78,918,210.90x = 118,374,648.21 × 27,798,893.82
  4. Step 4: Simplify right side
    78,918,210.90x = 3,290,684,276,569,643
  5. Step 5: Solve for x
    x = 3,290,684,276,569,643/78,918,210.90
  6. Step 6: Final answer
    x = 41,697,400.88

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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.