Home / 808,534,987.86-1,115,781,646.18-437,257,019.22

Finding the Fourth Proportional to 808,534,987.86, 1,115,781,646.18 and 437,257,019.22

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Solution

The fourth proportional to 808,534,987.86, 1,115,781,646.18 and 437,257,019.22 is: 603,416,505.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,534,987.86 : 1,115,781,646.18 = 437,257,019.22 : x
  2. Step 2: Convert to fraction form
    808,534,987.86/1,115,781,646.18 = 437,257,019.22/x
  3. Step 3: Cross multiply
    808,534,987.86x = 1,115,781,646.18 × 437,257,019.22
  4. Step 4: Simplify right side
    808,534,987.86x = 487,883,356,709,051,584
  5. Step 5: Solve for x
    x = 487,883,356,709,051,584/808,534,987.86
  6. Step 6: Final answer
    x = 603,416,505.20

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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.