Home / 112,335,108.40-168,502,662.60-99,793,975.60

Finding the Fourth Proportional to 112,335,108.40, 168,502,662.60 and 99,793,975.60

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Solution

The fourth proportional to 112,335,108.40, 168,502,662.60 and 99,793,975.60 is: 149,690,963.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,335,108.40 : 168,502,662.60 = 99,793,975.60 : x
  2. Step 2: Convert to fraction form
    112,335,108.40/168,502,662.60 = 99,793,975.60/x
  3. Step 3: Cross multiply
    112,335,108.40x = 168,502,662.60 × 99,793,975.60
  4. Step 4: Simplify right side
    112,335,108.40x = 16,815,550,600,039,430
  5. Step 5: Solve for x
    x = 16,815,550,600,039,430/112,335,108.40
  6. Step 6: Final answer
    x = 149,690,963.40

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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.