Home / 387,171,622.53-534,290,111.93-210,961,065.86

Finding the Fourth Proportional to 387,171,622.53, 534,290,111.93 and 210,961,065.86

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Solution

The fourth proportional to 387,171,622.53, 534,290,111.93 and 210,961,065.86 is: 291,122,605.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,171,622.53 : 534,290,111.93 = 210,961,065.86 : x
  2. Step 2: Convert to fraction form
    387,171,622.53/534,290,111.93 = 210,961,065.86/x
  3. Step 3: Cross multiply
    387,171,622.53x = 534,290,111.93 × 210,961,065.86
  4. Step 4: Simplify right side
    387,171,622.53x = 112,714,411,488,540,048
  5. Step 5: Solve for x
    x = 112,714,411,488,540,048/387,171,622.53
  6. Step 6: Final answer
    x = 291,122,605.40

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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.