Home / 85,532,673.18-128,311,813.16-30,958,027.52

Finding the Fourth Proportional to 85,532,673.18, 128,311,813.16 and 30,958,027.52

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Solution

The fourth proportional to 85,532,673.18, 128,311,813.16 and 30,958,027.52 is: 46,441,675.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,532,673.18 : 128,311,813.16 = 30,958,027.52 : x
  2. Step 2: Convert to fraction form
    85,532,673.18/128,311,813.16 = 30,958,027.52/x
  3. Step 3: Cross multiply
    85,532,673.18x = 128,311,813.16 × 30,958,027.52
  4. Step 4: Simplify right side
    85,532,673.18x = 3,972,280,642,989,875.50
  5. Step 5: Solve for x
    x = 3,972,280,642,989,875.50/85,532,673.18
  6. Step 6: Final answer
    x = 46,441,675.39

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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.