Home / 61,688,114.93-85,138,974.47-39,370,730.21

Finding the Fourth Proportional to 61,688,114.93, 85,138,974.47 and 39,370,730.21

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Solution

The fourth proportional to 61,688,114.93, 85,138,974.47 and 39,370,730.21 is: 54,337,591.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,688,114.93 : 85,138,974.47 = 39,370,730.21 : x
  2. Step 2: Convert to fraction form
    61,688,114.93/85,138,974.47 = 39,370,730.21/x
  3. Step 3: Cross multiply
    61,688,114.93x = 85,138,974.47 × 39,370,730.21
  4. Step 4: Simplify right side
    61,688,114.93x = 3,351,983,594,463,897
  5. Step 5: Solve for x
    x = 3,351,983,594,463,897/61,688,114.93
  6. Step 6: Final answer
    x = 54,337,591.58

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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.