Home / 103,611,312,007.20-155,416,968,010.80-86,874,746,882.40

Finding the Fourth Proportional to 103,611,312,007.20, 155,416,968,010.80 and 86,874,746,882.40

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Solution

The fourth proportional to 103,611,312,007.20, 155,416,968,010.80 and 86,874,746,882.40 is: 130,312,120,323.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,611,312,007.20 : 155,416,968,010.80 = 86,874,746,882.40 : x
  2. Step 2: Convert to fraction form
    103,611,312,007.20/155,416,968,010.80 = 86,874,746,882.40/x
  3. Step 3: Cross multiply
    103,611,312,007.20x = 155,416,968,010.80 × 86,874,746,882.40
  4. Step 4: Simplify right side
    103,611,312,007.20x = 13,501,809,757,168,305,438,720
  5. Step 5: Solve for x
    x = 13,501,809,757,168,305,438,720/103,611,312,007.20
  6. Step 6: Final answer
    x = 130,312,120,323.60

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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.