Home / 85,397,167.79-128,070,368.69-36,212,295.17

Finding the Fourth Proportional to 85,397,167.79, 128,070,368.69 and 36,212,295.17

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Solution

The fourth proportional to 85,397,167.79, 128,070,368.69 and 36,212,295.17 is: 54,307,679.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,397,167.79 : 128,070,368.69 = 36,212,295.17 : x
  2. Step 2: Convert to fraction form
    85,397,167.79/128,070,368.69 = 36,212,295.17/x
  3. Step 3: Cross multiply
    85,397,167.79x = 128,070,368.69 × 36,212,295.17
  4. Step 4: Simplify right side
    85,397,167.79x = 4,637,721,993,512,063
  5. Step 5: Solve for x
    x = 4,637,721,993,512,063/85,397,167.79
  6. Step 6: Final answer
    x = 54,307,679.21

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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.