Home / 85,039,433.48-117,291,763.73-64,132,347.21

Finding the Fourth Proportional to 85,039,433.48, 117,291,763.73 and 64,132,347.21

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Solution

The fourth proportional to 85,039,433.48, 117,291,763.73 and 64,132,347.21 is: 88,455,388.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,039,433.48 : 117,291,763.73 = 64,132,347.21 : x
  2. Step 2: Convert to fraction form
    85,039,433.48/117,291,763.73 = 64,132,347.21/x
  3. Step 3: Cross multiply
    85,039,433.48x = 117,291,763.73 × 64,132,347.21
  4. Step 4: Simplify right side
    85,039,433.48x = 7,522,196,116,084,983
  5. Step 5: Solve for x
    x = 7,522,196,116,084,983/85,039,433.48
  6. Step 6: Final answer
    x = 88,455,388.39

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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.