Home / 103,611,312,013.45-155,416,968,020.17-86,874,746,888.65

Finding the Fourth Proportional to 103,611,312,013.45, 155,416,968,020.17 and 86,874,746,888.65

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Solution

The fourth proportional to 103,611,312,013.45, 155,416,968,020.17 and 86,874,746,888.65 is: 130,312,120,332.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,611,312,013.45 : 155,416,968,020.17 = 86,874,746,888.65 : x
  2. Step 2: Convert to fraction form
    103,611,312,013.45/155,416,968,020.17 = 86,874,746,888.65/x
  3. Step 3: Cross multiply
    103,611,312,013.45x = 155,416,968,020.17 × 86,874,746,888.65
  4. Step 4: Simplify right side
    103,611,312,013.45x = 13,501,809,758,953,680,142,336
  5. Step 5: Solve for x
    x = 13,501,809,758,953,680,142,336/103,611,312,013.45
  6. Step 6: Final answer
    x = 130,312,120,332.97

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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.