Home / 145,883,522.65-201,318,659.32-78,902,555.57

Finding the Fourth Proportional to 145,883,522.65, 201,318,659.32 and 78,902,555.57

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Solution

The fourth proportional to 145,883,522.65, 201,318,659.32 and 78,902,555.57 is: 108,885,201.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,883,522.65 : 201,318,659.32 = 78,902,555.57 : x
  2. Step 2: Convert to fraction form
    145,883,522.65/201,318,659.32 = 78,902,555.57/x
  3. Step 3: Cross multiply
    145,883,522.65x = 201,318,659.32 × 78,902,555.57
  4. Step 4: Simplify right side
    145,883,522.65x = 15,884,556,704,274,196
  5. Step 5: Solve for x
    x = 15,884,556,704,274,196/145,883,522.65
  6. Step 6: Final answer
    x = 108,885,201.12

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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.