Home / 155,688,940.08-214,855,222.41-86,078,815.02

Finding the Fourth Proportional to 155,688,940.08, 214,855,222.41 and 86,078,815.02

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Solution

The fourth proportional to 155,688,940.08, 214,855,222.41 and 86,078,815.02 is: 118,791,244.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,688,940.08 : 214,855,222.41 = 86,078,815.02 : x
  2. Step 2: Convert to fraction form
    155,688,940.08/214,855,222.41 = 86,078,815.02/x
  3. Step 3: Cross multiply
    155,688,940.08x = 214,855,222.41 × 86,078,815.02
  4. Step 4: Simplify right side
    155,688,940.08x = 18,494,482,945,911,348
  5. Step 5: Solve for x
    x = 18,494,482,945,911,348/155,688,940.08
  6. Step 6: Final answer
    x = 118,791,244.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.