Home / 103,611,312,002.45-155,416,968,003.67-86,874,746,877.65

Finding the Fourth Proportional to 103,611,312,002.45, 155,416,968,003.67 and 86,874,746,877.65

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Solution

The fourth proportional to 103,611,312,002.45, 155,416,968,003.67 and 86,874,746,877.65 is: 130,312,120,316.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,611,312,002.45 : 155,416,968,003.67 = 86,874,746,877.65 : x
  2. Step 2: Convert to fraction form
    103,611,312,002.45/155,416,968,003.67 = 86,874,746,877.65/x
  3. Step 3: Cross multiply
    103,611,312,002.45x = 155,416,968,003.67 × 86,874,746,877.65
  4. Step 4: Simplify right side
    103,611,312,002.45x = 13,501,809,755,810,659,565,568
  5. Step 5: Solve for x
    x = 13,501,809,755,810,659,565,568/103,611,312,002.45
  6. Step 6: Final answer
    x = 130,312,120,316.47

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Double scale
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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.