Home / 78,918,206.40-118,374,641.46-27,798,889.32

Finding the Fourth Proportional to 78,918,206.40, 118,374,641.46 and 27,798,889.32

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Solution

The fourth proportional to 78,918,206.40, 118,374,641.46 and 27,798,889.32 is: 41,697,394.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,918,206.40 : 118,374,641.46 = 27,798,889.32 : x
  2. Step 2: Convert to fraction form
    78,918,206.40/118,374,641.46 = 27,798,889.32/x
  3. Step 3: Cross multiply
    78,918,206.40x = 118,374,641.46 × 27,798,889.32
  4. Step 4: Simplify right side
    78,918,206.40x = 3,290,683,556,241,223
  5. Step 5: Solve for x
    x = 3,290,683,556,241,223/78,918,206.40
  6. Step 6: Final answer
    x = 41,697,394.13

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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.