Home / 265,798,109.80-398,771,814.30-129,487,940.20

Finding the Fourth Proportional to 265,798,109.80, 398,771,814.30 and 129,487,940.20

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Solution

The fourth proportional to 265,798,109.80, 398,771,814.30 and 129,487,940.20 is: 194,268,277.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,798,109.80 : 398,771,814.30 = 129,487,940.20 : x
  2. Step 2: Convert to fraction form
    265,798,109.80/398,771,814.30 = 129,487,940.20/x
  3. Step 3: Cross multiply
    265,798,109.80x = 398,771,814.30 × 129,487,940.20
  4. Step 4: Simplify right side
    265,798,109.80x = 51,636,140,843,523,904
  5. Step 5: Solve for x
    x = 51,636,140,843,523,904/265,798,109.80
  6. Step 6: Final answer
    x = 194,268,277.09

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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.