Home / 153,188,699.44-211,399,402.08-87,109,208.32

Finding the Fourth Proportional to 153,188,699.44, 211,399,402.08 and 87,109,208.32

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Solution

The fourth proportional to 153,188,699.44, 211,399,402.08 and 87,109,208.32 is: 120,210,137.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,188,699.44 : 211,399,402.08 = 87,109,208.32 : x
  2. Step 2: Convert to fraction form
    153,188,699.44/211,399,402.08 = 87,109,208.32/x
  3. Step 3: Cross multiply
    153,188,699.44x = 211,399,402.08 × 87,109,208.32
  4. Step 4: Simplify right side
    153,188,699.44x = 18,414,834,554,510,160
  5. Step 5: Solve for x
    x = 18,414,834,554,510,160/153,188,699.44
  6. Step 6: Final answer
    x = 120,210,137.05

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1.5x scale

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.