Home / 315,218,418.40-472,429,496.40-153,311,730.40

Finding the Fourth Proportional to 315,218,418.40, 472,429,496.40 and 153,311,730.40

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Solution

The fourth proportional to 315,218,418.40, 472,429,496.40 and 153,311,730.40 is: 229,773,957.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,218,418.40 : 472,429,496.40 = 153,311,730.40 : x
  2. Step 2: Convert to fraction form
    315,218,418.40/472,429,496.40 = 153,311,730.40/x
  3. Step 3: Cross multiply
    315,218,418.40x = 472,429,496.40 × 153,311,730.40
  4. Step 4: Simplify right side
    315,218,418.40x = 72,428,983,585,084,576
  5. Step 5: Solve for x
    x = 72,428,983,585,084,576/315,218,418.40
  6. Step 6: Final answer
    x = 229,773,957.86

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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.