Home / 309,915,740.46-427,703,064.57-170,686,465.32

Finding the Fourth Proportional to 309,915,740.46, 427,703,064.57 and 170,686,465.32

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Solution

The fourth proportional to 309,915,740.46, 427,703,064.57 and 170,686,465.32 is: 235,557,975.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,915,740.46 : 427,703,064.57 = 170,686,465.32 : x
  2. Step 2: Convert to fraction form
    309,915,740.46/427,703,064.57 = 170,686,465.32/x
  3. Step 3: Cross multiply
    309,915,740.46x = 427,703,064.57 × 170,686,465.32
  4. Step 4: Simplify right side
    309,915,740.46x = 73,003,124,297,985,024
  5. Step 5: Solve for x
    x = 73,003,124,297,985,024/309,915,740.46
  6. Step 6: Final answer
    x = 235,557,975.18

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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.