Home / 118,723,972.80-178,085,959.20-98,316,638.40

Finding the Fourth Proportional to 118,723,972.80, 178,085,959.20 and 98,316,638.40

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Solution

The fourth proportional to 118,723,972.80, 178,085,959.20 and 98,316,638.40 is: 147,474,957.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,723,972.80 : 178,085,959.20 = 98,316,638.40 : x
  2. Step 2: Convert to fraction form
    118,723,972.80/178,085,959.20 = 98,316,638.40/x
  3. Step 3: Cross multiply
    118,723,972.80x = 178,085,959.20 × 98,316,638.40
  4. Step 4: Simplify right side
    118,723,972.80x = 17,508,812,854,783,554
  5. Step 5: Solve for x
    x = 17,508,812,854,783,554/118,723,972.80
  6. Step 6: Final answer
    x = 147,474,957.60

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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.