Home / 85,417,109.96-117,887,339.40-52,371,515.12

Finding the Fourth Proportional to 85,417,109.96, 117,887,339.40 and 52,371,515.12

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Solution

The fourth proportional to 85,417,109.96, 117,887,339.40 and 52,371,515.12 is: 72,279,881.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,417,109.96 : 117,887,339.40 = 52,371,515.12 : x
  2. Step 2: Convert to fraction form
    85,417,109.96/117,887,339.40 = 52,371,515.12/x
  3. Step 3: Cross multiply
    85,417,109.96x = 117,887,339.40 × 52,371,515.12
  4. Step 4: Simplify right side
    85,417,109.96x = 6,173,938,577,843,672
  5. Step 5: Solve for x
    x = 6,173,938,577,843,672/85,417,109.96
  6. Step 6: Final answer
    x = 72,279,881.40

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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.