Home / 121,553,330.48-167,743,519.08-66,549,172.40

Finding the Fourth Proportional to 121,553,330.48, 167,743,519.08 and 66,549,172.40

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Solution

The fourth proportional to 121,553,330.48, 167,743,519.08 and 66,549,172.40 is: 91,837,815.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,553,330.48 : 167,743,519.08 = 66,549,172.40 : x
  2. Step 2: Convert to fraction form
    121,553,330.48/167,743,519.08 = 66,549,172.40/x
  3. Step 3: Cross multiply
    121,553,330.48x = 167,743,519.08 × 66,549,172.40
  4. Step 4: Simplify right side
    121,553,330.48x = 11,163,192,370,237,610
  5. Step 5: Solve for x
    x = 11,163,192,370,237,610/121,553,330.48
  6. Step 6: Final answer
    x = 91,837,815.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.