Home / 103,611,312,018.20-155,416,968,027.30-86,874,746,893.40

Finding the Fourth Proportional to 103,611,312,018.20, 155,416,968,027.30 and 86,874,746,893.40

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Solution

The fourth proportional to 103,611,312,018.20, 155,416,968,027.30 and 86,874,746,893.40 is: 130,312,120,340.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,611,312,018.20 : 155,416,968,027.30 = 86,874,746,893.40 : x
  2. Step 2: Convert to fraction form
    103,611,312,018.20/155,416,968,027.30 = 86,874,746,893.40/x
  3. Step 3: Cross multiply
    103,611,312,018.20x = 155,416,968,027.30 × 86,874,746,893.40
  4. Step 4: Simplify right side
    103,611,312,018.20x = 13,501,809,760,311,326,015,488
  5. Step 5: Solve for x
    x = 13,501,809,760,311,326,015,488/103,611,312,018.20
  6. Step 6: Final answer
    x = 130,312,120,340.10

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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.