Home / 85,695,329.32-128,502,477.96-33,197,590.30

Finding the Fourth Proportional to 85,695,329.32, 128,502,477.96 and 33,197,590.30

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Solution

The fourth proportional to 85,695,329.32, 128,502,477.96 and 33,197,590.30 is: 49,780,689.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,695,329.32 : 128,502,477.96 = 33,197,590.30 : x
  2. Step 2: Convert to fraction form
    85,695,329.32/128,502,477.96 = 33,197,590.30/x
  3. Step 3: Cross multiply
    85,695,329.32x = 128,502,477.96 × 33,197,590.30
  4. Step 4: Simplify right side
    85,695,329.32x = 4,265,972,615,850,859.50
  5. Step 5: Solve for x
    x = 4,265,972,615,850,859.50/85,695,329.32
  6. Step 6: Final answer
    x = 49,780,689.91

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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.