Home / 142,997,007.21-214,463,590.34-66,310,070.91

Finding the Fourth Proportional to 142,997,007.21, 214,463,590.34 and 66,310,070.91

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Solution

The fourth proportional to 142,997,007.21, 214,463,590.34 and 66,310,070.91 is: 99,450,304.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,997,007.21 : 214,463,590.34 = 66,310,070.91 : x
  2. Step 2: Convert to fraction form
    142,997,007.21/214,463,590.34 = 66,310,070.91/x
  3. Step 3: Cross multiply
    142,997,007.21x = 214,463,590.34 × 66,310,070.91
  4. Step 4: Simplify right side
    142,997,007.21x = 14,221,095,882,727,040
  5. Step 5: Solve for x
    x = 14,221,095,882,727,040/142,997,007.21
  6. Step 6: Final answer
    x = 99,450,304.31

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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.