Home / 118,747,390.40-178,121,085.60-70,971,646.40

Finding the Fourth Proportional to 118,747,390.40, 178,121,085.60 and 70,971,646.40

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Solution

The fourth proportional to 118,747,390.40, 178,121,085.60 and 70,971,646.40 is: 106,457,469.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,747,390.40 : 178,121,085.60 = 70,971,646.40 : x
  2. Step 2: Convert to fraction form
    118,747,390.40/178,121,085.60 = 70,971,646.40/x
  3. Step 3: Cross multiply
    118,747,390.40x = 178,121,085.60 × 70,971,646.40
  4. Step 4: Simplify right side
    118,747,390.40x = 12,641,546,703,587,332
  5. Step 5: Solve for x
    x = 12,641,546,703,587,332/118,747,390.40
  6. Step 6: Final answer
    x = 106,457,469.60

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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.