Home / 258,293,448,207.40-387,440,172,311.10-118,707,280,911.40

Finding the Fourth Proportional to 258,293,448,207.40, 387,440,172,311.10 and 118,707,280,911.40

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Solution

The fourth proportional to 258,293,448,207.40, 387,440,172,311.10 and 118,707,280,911.40 is: 178,060,921,367.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,293,448,207.40 : 387,440,172,311.10 = 118,707,280,911.40 : x
  2. Step 2: Convert to fraction form
    258,293,448,207.40/387,440,172,311.10 = 118,707,280,911.40/x
  3. Step 3: Cross multiply
    258,293,448,207.40x = 387,440,172,311.10 × 118,707,280,911.40
  4. Step 4: Simplify right side
    258,293,448,207.40x = 45,991,969,370,894,961,213,440
  5. Step 5: Solve for x
    x = 45,991,969,370,894,961,213,440/258,293,448,207.40
  6. Step 6: Final answer
    x = 178,060,921,367.10

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1.5x scale

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.