Home / 78,701,206.23-118,066,940.65-30,175,275.47

Finding the Fourth Proportional to 78,701,206.23, 118,066,940.65 and 30,175,275.47

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Solution

The fourth proportional to 78,701,206.23, 118,066,940.65 and 30,175,275.47 is: 45,268,714.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,701,206.23 : 118,066,940.65 = 30,175,275.47 : x
  2. Step 2: Convert to fraction form
    78,701,206.23/118,066,940.65 = 30,175,275.47/x
  3. Step 3: Cross multiply
    78,701,206.23x = 118,066,940.65 × 30,175,275.47
  4. Step 4: Simplify right side
    78,701,206.23x = 3,562,702,457,461,275.50
  5. Step 5: Solve for x
    x = 3,562,702,457,461,275.50/78,701,206.23
  6. Step 6: Final answer
    x = 45,268,714.78

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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.