Home / 305,423,571.38-421,480,985.56-166,191,934.28

Finding the Fourth Proportional to 305,423,571.38, 421,480,985.56 and 166,191,934.28

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Solution

The fourth proportional to 305,423,571.38, 421,480,985.56 and 166,191,934.28 is: 229,342,941.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,423,571.38 : 421,480,985.56 = 166,191,934.28 : x
  2. Step 2: Convert to fraction form
    305,423,571.38/421,480,985.56 = 166,191,934.28/x
  3. Step 3: Cross multiply
    305,423,571.38x = 421,480,985.56 × 166,191,934.28
  4. Step 4: Simplify right side
    305,423,571.38x = 70,046,740,249,937,584
  5. Step 5: Solve for x
    x = 70,046,740,249,937,584/305,423,571.38
  6. Step 6: Final answer
    x = 229,342,941.46

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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.