Home / 78,701,207.23-118,066,942.15-30,175,276.47

Finding the Fourth Proportional to 78,701,207.23, 118,066,942.15 and 30,175,276.47

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Solution

The fourth proportional to 78,701,207.23, 118,066,942.15 and 30,175,276.47 is: 45,268,716.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,701,207.23 : 118,066,942.15 = 30,175,276.47 : x
  2. Step 2: Convert to fraction form
    78,701,207.23/118,066,942.15 = 30,175,276.47/x
  3. Step 3: Cross multiply
    78,701,207.23x = 118,066,942.15 × 30,175,276.47
  4. Step 4: Simplify right side
    78,701,207.23x = 3,562,702,621,343,746
  5. Step 5: Solve for x
    x = 3,562,702,621,343,746/78,701,207.23
  6. Step 6: Final answer
    x = 45,268,716.28

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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.