Home / 118,342,403.10-177,513,604.65-66,686,337.90

Finding the Fourth Proportional to 118,342,403.10, 177,513,604.65 and 66,686,337.90

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Solution

The fourth proportional to 118,342,403.10, 177,513,604.65 and 66,686,337.90 is: 100,029,506.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,342,403.10 : 177,513,604.65 = 66,686,337.90 : x
  2. Step 2: Convert to fraction form
    118,342,403.10/177,513,604.65 = 66,686,337.90/x
  3. Step 3: Cross multiply
    118,342,403.10x = 177,513,604.65 × 66,686,337.90
  4. Step 4: Simplify right side
    118,342,403.10x = 11,837,732,221,536,912
  5. Step 5: Solve for x
    x = 11,837,732,221,536,912/118,342,403.10
  6. Step 6: Final answer
    x = 100,029,506.85

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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.